Phase Behavior and Its Effects on Crystallization in a Poly(trimethylene terephthalate)/Phenoxy Resin Blend

被引：2

作者：

Cho, Su Jung ^{[1
]}

Cho, Jae Han ^{[1
]}

Lee, Kwang Hee ^{[1
]}

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 22212, South Korea

来源：

POLYMERS | 2016年 / 8卷 / 01期

关键词：

poly(trimethylene terephthalate); phenoxy resin; phase behavior; crystallization; POLY(ETHER IMIDE) BLENDS; MORPHOLOGY DEVELOPMENT; POLY(ETHYLENE-TEREPHTHALATE); SEPARATION; SCATTERING;

D O I：

10.3390/polym8010021

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Phase behavior and its effects on crystallization in an extruded poly(trimethylene terephthalate) (PTT)/phenoxy resin blend were studied with time-resolved light scattering (TRLS), optical microscopy (OM), differential scanning calorimetry (DSC), and small-angle X-ray scattering (SAXS). During annealing in the molten state, a two-phase structure with unique periodicity and phase connectivity was developed by liquid-liquid phase separation. After the formation of the phase-separated structure, the blend was homogenized by the interchange reactions between the two polymers. The crystallization behavior of PTT predominantly depended on the phase morphology developed during annealing. The pre-existing phase structures disturbed the lamellar orientation, resulting in a poorly ordered spherulitic superstructure.

引用

页数：8

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