文献类型：期刊文献

英文题名：Preparation of Aqueous Soluble Polyamides from Renewable Succinic Acid and Citric Acid as a New Approach to Design Bio-inspired Polymers

作者：Jiang, Man[1,2,3];Chen, Guangsong[2];Lu, Ping[2,3];Dong, Jian[1,2,3]

机构：[1]Ningbo Univ, Fac Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China;[2]Shaoxing Univ, Sch Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China;[3]Zhejiang Prov Key Lab Alternat Technol Fine Chem, Shaoxing 312000, Zhejiang, Peoples R China

年份：2014

卷号：131

期号：2

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000336256000052)、、EI(收录号：20134416934689)、Scopus(收录号：2-s2.0-84886501709)、WOS

基金：This was supported by grants from National Natural Science Foundation of China (No: 20974063), Department of Science and Technology of Zhejiang Province (No: 2012C24003), and Natural Science Foundation of Zhejiang Province (No: Y4090504 and LY12E03001).

语种：英文

外文关键词：polyamides; biopolymers and renewable polymers; polycondensation; hydrophilic polymers

外文摘要：A novel type of aqueous soluble polyamides were prepared as renewable substitutes for ecologically benign poly(aspartic acid) by polymerization of succinic acid ester and hexamethylene diamine in the presence of citric acid ester. The copolymerization resulted in the formation of poly(amide imide) intermediates, which were hydrolyzed to aqueous solutions of polyamides. The hydrolyzed products were confirmed to be copolymers of succinamide and citramide with COOH side chains, similar to poly(aspartic acid). The polyamides showed strong chelating abilities to Ca2+ and Pb2+ metals, comparable to poly(aspartic acid). Interestingly, they also demonstrated antifreeze activities in water by reducing the ice fractions. The polyamides represent a new class of metal chelators and antifreeze protein mimics derived from succinamide and citramide. (C) 2013 Wiley Periodicals, Inc.