文献类型：期刊文献

英文题名：Effect of Interchain Hydrogen Bond on the Water Solubility and Mechanical Properties of PLGA/PEO Blend

作者：Yang, Jianhua[1];Xia, Zhean[1];Cao, Mingjian[1];Ran, Xiangxin[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：44

期号：4

起止页码：445

外文期刊名：POLYMER-KOREA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000551849700004)】；

语种：英文

外文关键词：polylactic glycolic acid; polyethylene oxide; crystallization; water solubility; mechanical properties

摘要：Polyethylene oxide (PEO) possesses poor mechanical properties, which limits its application. For the purpose of improving the mechanical properties of water-soluble films, blend of polylactic glycolic acid (PLGA) with PEO was prepared by melt blending. The hydrogen bonding between PEO and PLGA was investigated by Fourier transform infrared spectrometer. The crystallization behavior, water solubility, and mechanical properties were evaluated. The results showed that there was a hydrogen bonding force between PLGA and PEO, and this force can improve the mechanical strength and water absorption of the film. When the PLGA content reached 20 wt%, the tensile strength and the elongation at break achieved a maximum 26.1 MPa and 771.2%, respectively. Compared to neat PEO, blend with 10 wt% of PLGA had considerably higher water absorption capacity. When the PLGA content was 40 wt%, the film would not disperse in water.