Magnetic orientation of poly(ethylene-2,6-naphthalate) during crystallization from melt

被引：30

作者：

Sata, H ^{[1
]}

Kimura, T ^{[1
]}

Ogawa, S ^{[1
]}

Ito, E ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Fac Engn, Dept Ind Chem, Hachioji, Tokyo 19203, Japan

来源：

POLYMER | 1998年 / 39卷 / 25期

关键词：

magnetic orientation; magnetic birefringence; poly(ethylene-2,6-naphthalate);

D O I：

10.1016/S0032-3861(97)10073-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Magnetic orientation of poly(ethylene-2,6-naphthalate) [PEN], reported in the previous paper, was studied in detail. Birefringence, X-ray and infrared analyses were carried out on the samples quenched at different periods of the crystallization time during the crystallization at 255 degrees C in the magnet (6T). These analyses showed that the orientation observed in the birefringence measurements starts during the induction period in which little crystallinity is observed with respect to the X-ray and infrared measurements. At a later stage of crystallization, the samples exhibited the orientation of crystallites with the c-axis parallel to the magnetic field. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：6325 / 6330

页数：6

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