Ring-opening polymerization of ε-caprolactam and ε-caprolactone via microwave irradiation

被引:77
作者
Fang, XM [1 ]
Simone, CD [1 ]
Vaccaro, E [1 ]
Huang, SJ [1 ]
Scola, DA [1 ]
机构
[1] Univ Connecticut, Inst Mat Sci, Polymer Sci Program, Storrs, CT 06269 USA
关键词
ring-opening polymerization; microwave cure; epsilon-caprolactam; epsilon-caprolactone; crystallization; processing;
D O I
10.1002/pola.10306
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A novel process for synthesizing nylon-6 and poly(epsilon-caprolactone) by microwave irradiation of the respective monomers, epsilon-caprolactam and epsilon-caprolactone, is described. The ring opening of epsilon-caprolactam to produce nylon-6 was performed in a microwave oven by the forward power being controlled to about 90-135 W in the presence of an omega-aminocaproic acid catalyst (10 mol %) and for periods of 1-3 h at temperatures varying from 250 to 280 degreesC. The ring opening of epsilon-caprolactone to produce poly(epsilon-caprolactone) was performed in a microwave oven by the forward power being controlled to about 70-100 W for a period of 2 h in the presence of stannous octoate with and without 1,4-butanediol over a temperature range of 150-200 degreesC. The yields, conditions of the reactions, and properties of the products generated relative to the thermal processes are discussed. (C) 2002 Wiley Periodicals, Inc.
引用
收藏
页码:2264 / 2275
页数:12
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