Effect of phosphate on the thermal properties of poly(ethylene naphthalate)/poly(ethylene terephthalate) blends

被引：0
|
作者：
Han, K
Kim, W
Hwang, SS
Kang, HJ [1 ]
机构：
[1] Dankook Univ, Ctr Adv Funct Polymers, Dept Polymer Sci & Engn, Seoul 140714, South Korea
[2] KIST, Polymer Hybrids Res Ctr, Seoul, South Korea
来源：
POLYMER-KOREA | 1999年 / 23卷 / 02期
关键词：
poly(ethylene terephthalate); poly(ethylene 2,6-naphthalate); blend; organic phosphate; transesterification;
D O I：
暂无
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 effect of organic phosphate as a transesterification inhibitor on transesterification reaction in poly(ethylene 2,6-naphthalate)poly(ethylene terephthalate) [PEN/PET] blends has been studied. Thermal properties of PEN/PET blends were also investigated as a function of processing conditions and the existence of organic phosphate. The level of transesterification reaction in PEN/PET blends decreased with the addition of organic phosphate as small as 0.3 wt%. Transesterification reaction in PEN/PET blends started at 220 degrees C and this temperature did not change by adding organic phosphate. The transesterification reaction caused the decrease of melting temperature and the increase of glass transition temperature and cold crystallization temperature of the PEN/PET blends. Adding organic phosphate as a transesterification inhibitor and a nucleating agent for crystallization resulted in increase of melting temperature and decrease of glass transition temperature in PEN/PET blends.
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页码：255 / 262
页数：8
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