摘要
文章研究了天然氨基酸作用下ε-己内酰胺的开环聚合及其与ε-己内酯的共聚反应。结果显示:中性、酸性、碱性等三类氨基酸中,中性两官能团氨基酸作用下ε-己内酰胺的开环聚合反应可以进行。当ε-己内酰胺与L-苯丙氨酸摩尔比等于100,体系在220℃反应48h后,得到粘均分子量为15700g/mol的聚(ε-己内酰胺)。天然氨基酸作用下ε-己内酯和ε-己内酰胺的共聚也可以发生,聚(ε-己内酰胺-co-ε-己内酯)的结构通过GPC,1H-NMR和FT-IR得到证实。
In the paper, Ring Opening Polymerization （ROP） of ε-caprolactam （PA） and copolymerization with ε-caprolactone.（ε-CL） initiated by different natural amino acids were studied. Results showed that the PA initiated by neutral amino acid has higher yield and molecular weight. The viscosity-average molecular weight（Mη ） of the PA reaches 15700 g/tool with [ε-caprolactam]/[L-Phenylalanine]=100 （mol/mol） reacting at 220 ℃ for 48 h. The poty（ε-CL-co-a-caprolactam） was also obtained in the presence of natural amino acid, and its structure was conformed by gel permeation chromatography （GPC）, ^1H-NMR and FTIR.
出处
《广东化工》
CAS
2010年第9期11-12,14,共3页
Guangdong Chemical Industry
基金
武汉市晨光科技基金(20065004116-39)项目
