A study of the crystalline transitions of polyamides X 18

被引：8

作者：

Cui, XW ^{[1
]}

Li, WH ^{[1
]}

Yan, DY ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Coll Chem & Chem Technol, Shanghai 200240, Peoples R China

来源：

POLYMER INTERNATIONAL | 2004年 / 53卷 / 12期

关键词：

polyamides; brill transition; WAXD; FTIR; nylon;

D O I：

10.1002/pi.1623

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The crystalline transition behavior of polyamides X 18, where X = 2, 4, 6, 8, 10 and 12, has been studied by variable-temperature wide-angle X-ray diffraction (WAXD) and real-time Fourier-transform infrared (FTIR) spectroscopy. It was found that polyamides 2 18 and 4 18 undergo the Brill transition on heating for both the melt-crystallized samples and the solution-crystallized samples. For polyamide 6 18, the melt-crystallized sample undergoes Brill transition before melting but the solution-crystallized sample melts prior to the complete crystalline transition. Polyamides 8 18, 10 18 and 12 18 do not undergo the Brill transition perfectly in advance of melting for either melt-crystallized or solution-crystallized samples. Real-time FTIR analysis of polyamides X 18 provided helpful information for understanding the mechanism of the crystalline transition. (C) 2004 Society of Chemical Industry

引用

页码：2031 / 2037

页数：7

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