A well-soluble grafted polymer of poly (vinyl alcohol) (PVA) used to fabricate dissolved microneedles was achieved through classic Michael addition and the functionalization of folate-targeted ligand. FTIR, Raman spectrum and 1H-NMR characterization ascertained the microstructure of resulted polymer. XPS analysis further confirmed the reasonability of analytic structure as well as the functionalized

Thermoplastic elastomers (TPE) are studied for their unique properties of being easily processes and recycled. This paper focuses on the wide scope of thermoplastic polyolefin elastomers (TPO/TPE-O) which is one of the major classes of TPE. The performance of TPO is the cumulative effect of polyolefins and rubbers with the ease of processing due to the presence of thermoplastics. The study focuses

Donor–acceptor (D-A) type of new constituted diketopyrrolopyrrole-based polymers, PDPP-EDOT (poly A), PDPP-TP (poly B), and PDPP-EBTE (poly C), were synthesized by one-pot direct C–H heteroarylation polymerization methodology supported by Pd(OAc)2/Bu4NBr catalytic system. C–H heteroarylation coupling of highly selective sites avoided the difficulty of the synthesis using organometallic reagent and

A chitosan-based composite named poly(1-vinylimidazole)-chitosan (PVI-CS) was fabricated employing a microwave-assisted protocol to be used as a novel composite for CdII contaminated water. The prepared PVI-CS composite was evaluated using SEM-coupled EDX, FTIR and zeta potential analyses. Under certain experimental conditions of the batch process, the binding behavior of PVI-CS sorbent against CdII

Amphiphilic diblock copolymers may assemble in aqueous solutions to form vesicles delimited by a polymeric double layer, also known as polymersomes, considered a more robust option to liposomes. Diblock copolymers may respond to pH, temperature, and other conditions. Because of such properties, polymersomes are currently being studied as drug delivery systems or as nanoreactors. pH-responsive polymersomes

The original version of this article inadvertently contained mistake.

In this paper, copolymerization of methyl methacrylate (MMA) with n-butyl acrylate (BA) in a bubble column reactor using benzoyl peroxide as free radical initiator, at a temperature over 85 °C, is presented. This mode of copolymerization keeps an inert atmosphere throughout the entire reaction and contributes to proper mixing of the monomers. Higher pressure of the bubbling ensures the faster contact

In this research to improve the thermal and mechanical properties of polyglycidyl nitrate (PGN)-based energetic polyurethane network was used a novel flexible chain triblock copolymer based on polypropylene glycol–poly glycidyl nitrate–polypropylene glycol (PPG–PGN–PPG). Energetic polyurethane was prepared by curing of the triblock copolymer with different curing agents (TDI, IPDI, N100, IPDI/N100)

Autolytic debridement can accelerate wound healing by removing necrotic tissue. A hydrogel was fabricated from an aqueous solution of gelatin, sodium alginate and carboxymethylcellulose sodium by radiation-induced cross-linking at room temperature, which was aiming at the application of debridement glue paste. The swelling ratio of the debridement glue paste is 30 times to its dry weight, when the

Condensed tannins extracted from the Pinus radiata bark (PRTs) were used as a replacement for phenol in the synthesis of resol-type phenolic resins (FRs) and tested as polymer matrix in carbon nanofiber (CNF)-reinforced composite materials. The PRTs used herein contained a phenol and lignin content of 31 (Eq/L) and 35 (%w/w), respectively. The molecular weights of these polyphenols indicated the presence

This study included the preparation and tribo-characterization of Calotropis gigantea (CG) fiber reinforced CNT modified phenolic resin composites. Composites were prepared with varying contents (0.25, 0.5, 1 and 2 wt%) of multi-walled carbon nanotube (MWCNT) in phenolic resin, which was reinforced with CG fiber. The prepared composites were tested for their adhesive wear and frictional behavior at

Film directing toward applications in food packaging and counter top coating with ability of inhibiting antimicrobial growth is important for maintaining food freshness and reducing bacteria transmittance. In this work, cellulose-based fatty amine with antimicrobial functionality covalently attached to cellulose backbone was synthesized. The synthesis was performed in a three-step process that involves

A bioactive and non-toxic biopolymer-based electrolyte has gained attention in recent research for their potential applications in the fabrication of electrochemical devices. In this work, we extracted the chitosan successfully prepared from shrimp shells using Brine’s method. The solid polymer electrolyte comprising the blend of chitosan and agar–agar, plasticised with polyethylene glycol (PEG), as

Poor bioavailability of hesperidin (HES) due to its gastric instability and low aqueous solubility limits its clinical application. The objective of presented work was to incorporate self-microemulsifying drug delivery system of HES (SMEDDS-HES) into alginate beads. The alginate beads were characterized for their size and morphology by using motic microscopy and scanning electron microscopy. The selected

We investigated a novel drug delivery system comprising nanoparticles based on chitosan/graphene oxide (GO)/folic acid for targeted delivery of chemotherapeutic drugs. In this research, GO is accompanied with chitosan as natural cationic polysaccharide to increase compatibility. First, GO was synthesized, then chitosan was grafted to it by chemical interaction, and then chitosan nanoparticle and GO

Ag nanoparticles (AgNPs) and Ag/polyvinyl alcohol (PVA) nanofiber composites were synthesized via chemical reduction and electrospinning methods, respectively. The filler mass of AgNPs in the Ag/PVA nanofiber composites was varied from 0.025 to 0.125 g. X-ray diffraction (XRD) analysis was used to determine the structure, crystal size, and lattice parameter of powdered AgNPs. Fourier transform infrared

In this study, changes in the characteristics of O-rings and a blended fuel (ADD-BJF) consisting of bio-jet fuel and petroleum-based jet fuel (Jet A-1) were analyzed. Nitrile butadiene rubber (NBR) and fluorocarbon rubber (FKM-1, 2) were used as the experimental O-rings. For all experimental O-rings, at the beginning of storage after contact with ADD-BJF the compression set value tended to increase

Sporopollenin-mediated control drug delivery has been studied extensively owing to its desirable physicochemical and biological properties. Herein, sporopollenin was successfully extracted from C. libani and P. nigra pollens followed by loading of a commonly known anticancer drug Oxaliplatin. Drug loading and physicochemical features were confirmed by using light microscopy, FT-IR, SEM and TGA. For

A series of novel sulfonated poly(arylene ether phosphine oxide)s containing diphenyl ether (sPEPO) with various sulfonation degrees were synthesized using direct polycondensation. The transparent, tough and flexible membranes could be obtained by casting. The macroscopic properties and microstructure of the obtained membranes were studied in detail. The results showed that these sPEPO membranes with

In this study, a graphene oxide/polyvinylidene fluoride (GO/PVDF) tight hollow fiber membrane (HFM) with improved permeability was fabricated via one-step direct spinning process to fractionate the dyes and salts (NaCl and Na2SO4) in textile wastewater. Scanning electron microscopy (SEM) indicated that the GO/PVDF HFM possessed a smooth and tight outer selective layer and a relatively porous and loose

In this article, gum rosin-based hyperbranched vinyl ester resin (VPEMPAE) was synthesized from maleic anhydride-modified gum rosin adduct (MPA). This adduct (MPA) was reacted with pentaerythritol to obtain esterified adduct (PEMPA). The PEMPA adduct was epoxidized using epichlorohydrin and KOH as a catalyst to give epoxy resin (PEMPAE). The epoxide rings were then reacted with methacrylic acid to

The superabsorbent polymers (SAPs) containing up to 30% w of N-succinylchitosan and N-maleoylchitosan were successfully synthesized by free radical polymerization in an aqueous solution. The structures and surfaces of the synthesized SAPs were characterized by FTIR and SEM, respectively. The influence of the parameters such as type and content of polysaccharide, cross-linker, and comonomer mixture

This study aimed to improve the performance of a masterbatches by improving the latex compounding process. Four types of methods for preparation of natural rubber latex/silica composites are performed. In particular, atomization combined with high-temperature sputtering (A-HTS) method which is developed to optimize filler dispersion of latex compounding technology is conducted to dry the masterbatches

The present work deals with the influence of lignite fly ash (LFA) on the physical properties of polymer matrix composite (PMC). The study was conducted on different compositions of PMC which were prepared using epoxy polymer (EP) amalgamated with LFA and banana fiber (BF) by hand layup process. The different compositions were prepared in the combination of (80-x)EP-20BF-xLFA (where x = 0, 2.5, 5,

Curcumin is a natural polyphenol obtained from Curcuma longa which has gained much attention in medical and scientific fields and is known for its wide range of therapeutic applications. But the natural herb mixtures with high subatomic sizes have low retention limits which does not permit the restorative medication to cross the lipid membranes, subsequently bringing about low bioavailability with

In this study, PAN-based carbon nanofibers (CNFs) were synthesized via electrospinning followed by stabilizing and carbonization. The carbonization process was performed by heating the fibrous mats up to a maximum temperature in the region of 800–1600 °C. The effect of carbonization maximal temperature on the structure and tensile strength of carbon nanofiber mats was investigated via SEM, elemental

In this study, our aim was to determine the effect of the polymer matrix on the drug delivery system; active-drug-loaded xanthan-gum (XaG)-based ZnO nanoparticles were synthesized under the ultrasonic irritation method. We characterized the structure using UV–Vis, SEM–EDX, FTIR and XRD techniques. The morphology of the nanoparticles has been carried out using SEM, and the results revealed that hexagonal

In this paper, polythiophene–graphene oxide (PTh–GO) hybrids-filled epoxy (0–2 wt%) coatings with enhanced mechanical and anti-corrosion properties applied as an advanced coating. The chemical structure, morphology, toughness, adhesion to the substrate and anticorrosive properties of these coatings were studied. FTIR analysis and morphological investigations (XRD, SEM and TEM) confirmed that PTh synthesized

The authors declare that for any communication of this article, the corresponding author should be considered as Prof. (Dr.) S. T. Mhaske (stmhaske@gmail.com).

This erratum corrects the reference 45 and updates the reference 37 of the published paper. Full details of the reference 37 became available simultaneously with reviewing the proofs while the initials of three co-authors Zakrevskii, Pakhotin, and Sudar in the reference 45 were wrongly combined in one word VAVANT.

Amphiphilic copolymer molecular brushes of three different types with side chains consisting of alkyl and oligo(ethylene glycol) blocks based on higher alkoxy oligo(ethylene glycol) methacrylates (HAOEGM), methoxy oligo(ethylene glycol) methacrylates (MOEGM) and dodecyl(meth)acrylate have been successfully synthesized via conventional radical polymerization in toluene. In case of the copolymerization

A suitable material for wind turbine blades has promoted great interest in carbon-based thermoplastic polyurethane (TPU) composites as they are flexible, lightweight, and mechanically robust. However, these carbon-based fillers deteriorate the thermal and mechanical properties in the long run due to the high agglomeration of the nanoparticles. In addition to that, these fillers also increase the production

The preparation of a lanthanum ion-imprinted polymer is described via surface ion imprinting, with polyethyleneimine as the functional monomer and SBA-15 as the matrix material. Its structure was characterized and analyzed, and static adsorption experiments were carried out to determine the best experimental conditions for the adsorption of lanthanum ions. The effects of initial concentration, temperature

The pH-sensitive smart hydrogel sensor was studied. The hydrogel was prepared from polymerization reaction between the 2-hydroxyethyl methacrylate and diallyldimethyammonium chloride using potassium persulfate as an initiator, N, N′-methylenebisacrylamide as a cross-linker and N, N, N′, N′-tetramethylethylenediamine as an accelerator. Bromothymol blue was added to the polymerization system to produce

Flexible dye-sensitized solar cells (FDSSCs) have promoted interest in plastic industries as they are lightweight, flexible, and mechanically robust to accelerate production and reduce cost. However, the plastic substrates have temperature limitations in producing the TiO2 photoanode and degrade the performance of FDSSC. The main reason for this degradation is the low charge transfer in the photoanode

The aim of this study was the optimization of the gallic acid (GA) encapsulation efficiency within calcium alginate microparticles by the ionotropic gelation technique, using Box-Behnken design for the surface methodology response. For this purpose, three independent variables were selected: sodium alginate concentration (X1), calcium chloride concentration (X2), and gallic acid concentrations (X3)

V2O5-incorporated polyfuran (PF) as nanofiller(V2O5-PF) was used to synthesize epoxy (EP)-PF/V2O5 nanocomposites. The PF-functionalized V2O5 nanoparticles were characterized by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The corrosion protection performance of these coatings on mild steel in natural

Esters of 2-bromo-2-methylpropanoate of poly(oxyalkylene) polymers such as poly(ethylene glycol) or α-methyl poly(ethylene glycol) were prepared in high yields and characterized by spectroscopic and chromatographic methods (NMR, FT-IR, mass spectroscopy and SEC). The halogen chain-end group in the poly(oxyalkylene) bromine-terminated esters was characterized by MALDI-TOF MS. The effect of the solvents

The surface mineral modification of montmorillonite (Mt) layers was carried out by removing some of the exchangeable cations and anions (salts) using dimethylformamide as a chelating agent. The rest unremoved exchangeable cations were balanced by the permanent negative charges in the Mt layers. The modified Mt layers were characterized by X-ray fluorescence, high-resolution scanning electron microscopy

This work aims to investigate how adding functionalized carbon nanotubes (CNTs) to a Polyamide 6/polypropylene blend influences its properties. CNT functionalization was carried on through plasma with oxygen (CNT_O2) or maleic anhydride (CNT_MA). CNT_O2 presented the highest amount of oxygen, but, as the treatment time in plasma was twice as long as that of the CNT_MA sample, the oxygenated groups

Polymer nanocomposites with vital reinforcements of conductive fillers have evinced as next-generation high-performance materials with multi-functional applications. Herein, we report the facile synthesis of thermally stable, highly electrically conducting polyaniline multi-walled carbon nanotubes (PANI/MWCNT) nanocomposites doped in two different protonic acids, i.e. hydrochloric acid (HCl) and sulphuric

The growing interest for biodegradable products promoted the development of new materials. In this work, three types of multi-functional epoxides of Joncryl ADR4368, ADR4380 and ADR4370 were used to study the effect of Joncryl types on the morphology, mechanical, thermal and rheological properties of poly(butylene adipate-co-terephthalate)/poly(lactide) (PBAT/PLA) blends. According to the structure

Cryogels with embedded natural adsorbent are new trend of chromatographic media for separation of biomolecules. In this report, experimental determination of immunoglobulin G (IgG) purification by Cu2+-attached pumice particles unified cryogel (Cu2+-PPUC) was performed. For this purpose, after preparation of Cu2+-attached pumice particles, they were unified with 2-hydroxyethyl methacrylate monomers

Chitosan/polyaniline nanofibers (CH/PANI) were prepared by an in situ oxidative polymerization of aniline in the presence of CH solution. An attractive development of nanofibers network provides free volume space for the easy encapsulation of drugs in the three-dimensional network structure. The CH/PANI hybrid was characterized by using Fourier transform infrared spectroscopy, scanning electron microscopy

Long-lived excited states dynamics of sky-blue emitting 9,10-bis [9-hexyl-6-((E)-styryl)-9H-carbazol-3-yl] anthracene derivatives have been investigated by means of time-correlated single photon counting and quasi-continuous wavelength photo-induced absorption (QCW-PIA) spectroscopies. The QCW-PIA is a versatile tool to investigate the long-lived photo-excited species with lifetimes ranging from microsecond

Dimenhydrinate is a therapeutic agent used for the treatment of nausea and vomiting. A conventional dose of dimenhydrinate is 50 mg per 8 h. Once-daily controlled release tablets of dimenhydrinate were formulated intended to treat emesis. The tablets were formulated using hydrophilic polymers Methocel® and hydrophobic polymers Ethocel® and subsequently analyzed for pre-compression and post-compression

Six promising biologically active polymers based on a 4-tert-butylcyclohexanone moiety have been synthesized through the Friedel–Crafts reaction as new polyketone derivatives. The polymerization occurred by the interaction of three different arylidene-based monomers, with adipoyl and sebacoyl diacid chlorides. The role of such arylidene linkages on the overall performance of these new polyketones was

The toughening of epoxy resins is a relatively recent trend in composite technology. The use of rigid carbonaceous fillers or plasticizing additives is well established in the literature, but their combined use and their effect on thermal or mechanical properties of composites is hardly studied. The aim of this work is to investigate the combination of neat and silane-treated carbonaceous fillers (graphene

Metal doped polyaniline (PANI) was synthesized following chemical oxidative polymerization method in acidic medium followed by two different doping techniques i.e. doping during polymerization and doping after polymerization of aniline. Three dopant materials ZnCl2, MgCl2, and CuCl2 were used in this synthesis. In first case, metal salts with various compositions were added with aniline and the polymerization

Metal oxide (i.e., Fe2O3, ZnO and TiO2) nanoparticles (NPs) have been prepared and investigated by various techniques with the objective of synthesis of nanocomposites thin films based on poly(vinyl chloride) (PVC) as a matrix. Different loadings of metal oxide NPs (i.e., 2.0, 5.0, 10.0 and 15.0 wt%) were incorporated in PVC followed by solution casting. The prepared film samples were characterized

This review article presents an extensive study on ammonia elimination from wastewater through membrane separation technology. The mechanism, performance and morphology of different types of membranes that have been employed for ammonia removal from wastewater such as hollow fiber membrane contactor, membrane distillation contactor and flat sheet membranes including blend, and mixed matrix membranes