Mesomorphic phase in oriented poly(pentamethylene 2,6-naphthalate)

被引：3

作者：

Do, Thi Cuc ^{[1
]}

Jeon, Hye-Jin ^{[1
]}

Song, Hyun Hoon ^{[1
]}

Tashiro, Kohji ^{[2
]}

Kim, Young Ho ^{[3
]}

Ree, Moonhor ^{[4
]}

机构：

[1] Hannam Univ, Dept Adv Mat, Taejon, South Korea

[2] Toyota Technol Inst, Dept Future Ind Oriented Basic Sci & Mat, Nagoya, Aichi 468, Japan

[3] Soongsil Univ, Dept Organ Mat & Fiber Engn, Seoul, South Korea

[4] Pohang Univ Sci & Technol, Dept Chem, Pohang, South Korea

来源：

POLYMER | 2010年 / 51卷 / 05期

关键词：

Cold-drawn poly(pentamethylene 2,6-naphthalate); X-ray scattering; Mesophase; STRAIN-INDUCED CRYSTALLIZATION; THERMOTROPIC LIQUID-CRYSTALS; MAIN-CHAIN POLYESTERS; POLY(ETHYLENE NAPHTHALATE); MESOPHASE STRUCTURE; X-RAY; POLY(ETHYLENE-TEREPHTHALATE); FIBERS; UNIT; PET;

D O I：

10.1016/j.polymer.2010.01.040

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 mesomorphic structure of poly(pentamethylene 2,6-naphthalate) (PPN) was investigated using a synchrotron X-ray scattering. The PPN fibers cold-drawn from the super-cooled amorphous state showed a smectic mesomorphic structure and further a crystalline phase at high strain. Based on the experimental evidence showing the split of amorphous halo up and down the equator and the conformational constraint suggested by the crystal structure refinement and computation, we suggested the smectic phase as S-CA where the mesogens are tilted against the layer surface normal and the tile direction is opposite between the neighboring layers. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：998 / 1001

页数：4

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