Crystallization and Morphology of Immiscible Double Crystalline Poly(p-dioxanone)-Poly(tetramethylene ether)glycol Multiblock Co-polymers

被引：1
作者：
Zhang, Jingjing [1 ]
Zhan, Miqin [1 ]
Wei, Min [1 ]
Xie, Hui [1 ]
Yang, Keke [1 ]
Wang, Yuzhong [1 ]
机构：
[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Natl Engn Lab Ecofriendly Polymer Mat Sichuan, Ctr Degradable & Flame Retardant Polymer Mat ERCE, Chengdu 610064, Peoples R China
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2014年 / 53卷 / 43期
基金：
美国国家科学基金会;
关键词：
ABC TRIBLOCK COPOLYMERS; DIBLOCK COPOLYMER; BLOCK-COPOLYMERS; POLY(EPSILON-CAPROLACTONE)-BLOCK-POLYETHYLENE COPOLYMERS; ISOTHERMAL CRYSTALLIZATION; MICROPHASE SEPARATION; LAMELLAR MORPHOLOGY; KINETICS; BEHAVIOR; GLYCOL);
D O I：
10.1021/ie503051c
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The crystallization behavior and intriguing crystal morphologies of double crystalline poly(p-dioxanone)-poly(tetramethylene ether)glycol (PPDOPTMEG) multiblock co-polymers were investigated via differential scanning calorimetry (DSC), polarizing optical microscopy (POM), and transmission electron microscopy (TEM). The effects of composition and microphase morphology on the crystallization of each segment were also explored. The results indicated that PPDO segments and PTMEG segments were immiscible. Composition and unique microphase morphology affected the crystallization ability and crystal morphology of PPDO and PTMEG segments. The kinetics of isothermal crystallization was studied calorimetrically and microscopically. It was found that crystallization rate of PPDO segment was slower than that of PPDO-H, which should be responsible for the dilution of PTMEG segments. In the case of PTMEG segments, the crystallization kinetics were highly correlated with the microphase morphology.
引用
收藏
页码：16793 / 16802
页数：10
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