Hydrophilic and Antibacterial Modification of Poly(lactic acid) Films by γ-ray Irradiation

被引：50

作者：

Qi, Yue ^{[1
]}

Ma, Hui-Ling ^{[1
]}

Du, Zhong-He ^{[1
]}

Yang, Bo ^{[1
]}

Wu, Jing ^{[1
]}

Wang, Rui ^{[1
]}

Zhang, Xiu-Qin ^{[1
]}

机构：

[1] Beijing Inst Fash Technol, Beijing Key Lab Clothing Mat R&D & Assessment, Beijing Engn Res Ctr Text Nanofiber, Sch Mat Design & Engn, Beijing 100029, Peoples R China

来源：

ACS OMEGA | 2019年 / 4卷 / 25期

基金：

中国国家自然科学基金;

关键词：

MECHANICAL-PROPERTIES; TENSILE BEHAVIOR; BLOCK-COPOLYMERS; ACRYLIC-ACID; PLA; CRYSTALLIZATION; BLENDS; CHAINS;

D O I：

10.1021/acsomega.9b03132

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To improve the hydrophilicity and imparting antibacterial properties to poly(lactic acid), poly(acrylic acid) (PAA) and silver particles (AgNPs) were simultaneously introduced onto the surface of poly(lactic acid) (PLA) films by gamma-ray irradiation. The morphology and structure of the modified films were characterized by scanning electron microscopy (SEM)/energy-dispersive X-ray (EDX) spectrometry and Fourier transform infrared (FTIR) spectroscopy. The interaction between PAA and AgNPs was investigated by X-ray photoelectron spectroscopy (XPS), confirming the coordination between AgNPs and the oxygen atom on the carboxylic group of PAA. The contact-angle (CA) measurements and antibacterial tests showed that the modified PLA films with a low silver content (PLA-g-PAA-Ag) exhibited excellent hydrophilicity as well as antibacterial activity compared with the neat PLA film.

引用

页码：21439 / 21445

页数：7

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