当前位置：
X-MOL 学术
›
J. Appl. Polym. Sci.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Physicochemical and antimicrobial properties of in situ crosslinked alginate/hydroxypropyl methylcellulose/ε‐polylysine films
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-12-16 , DOI: 10.1002/app.48832 Tatiana Schafranski Blachechen 1 , Denise Freitas Siqueira Petri 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-12-16 , DOI: 10.1002/app.48832 Tatiana Schafranski Blachechen 1 , Denise Freitas Siqueira Petri 1
Affiliation
|
In the present study, in situ crosslinked films were easily prepared by the spray deposition of Phase A, composed by sodium alginate (Alg), hydroxypropyl methylcellulose (HPMC), ε‐polylysine (ε‐PL), and plasticizers, followed by the spray deposition of Phase B (Ca2+ ions) on polystyrene dishes. The effect of the amount of plasticizer, HPMC, and ε‐PL in Phase A on the films properties was explored in a set of 12 systems. Fourier transform infrared vibrational spectroscopy in the attenuated total reflectance mode revealed that plasticizers compete with Ca2+ ions for complexation with Alg. Films with high HPMC content and low content of plasticizer and ε‐PL presented the best mechanical properties. The best system presented Young modulus of 0.76 ± 0.10 GPa, water vapor transmission of 5.35 ± 0.28 mg cm−2 h−1, swelling ratio of 1374 ± 97%, 99.99% reduction against Gram‐negative Escherichia coli bacteria, and 99.9% reduction against Gram‐positive Staphylococcus aureus bacteria. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48832.
中文翻译：
原位交联海藻酸盐/羟丙基甲基纤维素/ε-聚赖氨酸膜的理化和抗菌性能
在本研究中，可以通过喷涂A相（由藻酸钠（Alg），羟丙基甲基纤维素（HPMC），ε-聚赖氨酸（ε-PL）和增塑剂组成）来制备原位交联膜，然后进行喷涂B相（Ca 2+离子）在聚苯乙烯皿上的沉积。在12组系统中探索了相A中增塑剂，HPMC和ε-PL的量对薄膜性能的影响。衰减全反射模式下的傅立叶变换红外振动光谱显示增塑剂与Ca 2+竞争离子与Alg络合。HPMC含量高，增塑剂和ε‐PL含量低的薄膜具有最佳的机械性能。最佳系统的杨氏模量为0.76±0.10 GPa，水蒸气透过率为5.35±0.28 mg cm -2 h -1，溶胀率为1374±97％，对革兰氏阴性大肠杆菌降低99.99％，降低99.9％对抗革兰氏阳性金黄色葡萄球菌。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2020，137，48832。
更新日期：2020-03-27
中文翻译：
原位交联海藻酸盐/羟丙基甲基纤维素/ε-聚赖氨酸膜的理化和抗菌性能
在本研究中，可以通过喷涂A相（由藻酸钠（Alg），羟丙基甲基纤维素（HPMC），ε-聚赖氨酸（ε-PL）和增塑剂组成）来制备原位交联膜，然后进行喷涂B相（Ca 2+离子）在聚苯乙烯皿上的沉积。在12组系统中探索了相A中增塑剂，HPMC和ε-PL的量对薄膜性能的影响。衰减全反射模式下的傅立叶变换红外振动光谱显示增塑剂与Ca 2+竞争离子与Alg络合。HPMC含量高，增塑剂和ε‐PL含量低的薄膜具有最佳的机械性能。最佳系统的杨氏模量为0.76±0.10 GPa，水蒸气透过率为5.35±0.28 mg cm -2 h -1，溶胀率为1374±97％，对革兰氏阴性大肠杆菌降低99.99％，降低99.9％对抗革兰氏阳性金黄色葡萄球菌。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2020，137，48832。
京公网安备 11010802027423号