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Micellization of amphiphilic host–guest inclusion complexes of polymers based on β–cyclodextrin trimer and adamantane
Reactive & Functional Polymers ( IF 4.5 ) Pub Date : 2020-11-06 , DOI: 10.1016/j.reactfunctpolym.2020.104771
Kranthikumar Tungala , Krishna Kumar , Ekta Sonker , S. Krishnamoorthi

The present work aims to study the self–aggregation of amphiphlic miktoarm star polymers synthesized via the inclusion complexation of adamantyl terminated poly(methyl methacrylate) (ADM–PMMA) guest, into β–cyclodextrin grafted polyacrylamide (β–CD–PAM) and β–cyclodextrin trimer (3–β–CD) grafted polyacrylamide (3–β–CD–PAM) star polymer hosts, separately. β–CD and 3–β–CD based hosting star polymers have been synthesized through solution polymerization technique and the guest adamantyl terminated poly(methyl methacrylate) through the technique of atom transfer radical polymerization (ATRP) by using an adamantine–based ATRP initiator. Further, the guest polymer has been incorporated into the host polymer via molecular recognition between adamantyl moiety and β–CD. Construction of β–CD–PAM–b–ADM–PMMA and 3–β–CD–PAM–b–ADM–PMMA miktoarm star polymers has been examined by 1H NMR and 2D 1H NOESY NMR spectra. Their critical micellar concentrations have been estimated by using fluorescence spectroscopy. Further, sizes of the self–aggregates have been anticipated by dynamic light scattering and transmission electron microscopic investigations.



中文翻译:

基于β-环糊精三聚体和金刚烷的聚合物两亲性主-客体包合物的胶束化

目前的工作旨在研究通过金刚烷基封端的聚甲基丙烯酸甲酯(ADM-PMMA)客体的包合络合而合成的两性miktoarm星状聚合物自聚集为β-环糊精接枝聚丙烯酰胺(β-CD-PAM)和β -环糊精三聚体(3-β-CD)接枝聚丙烯酰胺(3-β-CD-PAM)星形聚合物基质。使用基于金刚烷的ATRP引发剂,通过溶液聚合技术合成了基于β–CD和3–β–CD的主体星形聚合物,并通过原子转移自由基聚合(ATRP)技术,通过客体金刚烷基封端的聚甲基丙烯酸甲酯。此外,通过金刚烷基部分和β-CD之间的分子识别,客体聚合物已经掺入主体聚合物中。1 H NMR和2D 1 H NOESY NMR谱。它们的临界胶束浓度已通过使用荧光光谱法估计。此外,通过动态光散射和透射电子显微镜研究已经预见到了自聚集体的大小。

更新日期:2020-11-06
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