文献类型：期刊文献

英文题名：Synthesis and Characterization of Poly(lactic acid-co-glycolic acid-co-ε-caprolactone) and Its Pressure Sensitive Adhesive Property

作者：Cao, Minjian[1];Xia, Zhean[1];Ran, Xiangxin[1];Zou, Jinglong[1]

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

年份：2021

卷号：45

期号：4

起止页码：592

外文期刊名：POLYMER-KOREA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000674662000013)】；

语种：英文

外文关键词：poly(lactic acid-co-glycolic acid); epsilon-caprolactone; glass transition temperature; pressure-sensitive adhesive property

摘要：Random copolymers of poly(lactic acid-co-glycolic acid-co-epsilon-caprolactone) (PLGA-CL) based on lactic acid (LA), glycolic acid (GA), citric acid (CA), and epsilon-caprolactone (CL) were synthesized and characterized. H-1 NMR spectra showed that the polymerization conversion of various monomers was high under the experimental conditions, and the degree of polymerization of the polycaprolactone (PCL) segment increased with the growth of CL content. The content of CL has a remarkable effect on the decrease of glass transition temperature (T-g) of the copolymers. The adhesive properties of random copolymers as pressure-sensitive adhesive (PSA) were evaluated. With the increase of CL content, 180 degrees peel strength, the shear strength and loop tack decreased. When CL content was 16.7 wt%, 180 degrees peel strength was 4.76 N/25 mm, and loop tack was 8.45 N/25 mm.