Polycarbonate/liquid crystalline polymer blend: Crystallization of polycarbonate
Polycarbonate/liquid crystalline polymer blend: Crystallization of polycarbonate
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DOI：
10.1016/j.polymer.2006.09.044
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发表时间：
2006-11
期刊：
影响因子：
4.6
通讯作者：
B. Yin;Yin Zhao;Wei Yang;Min-min Pan;Ming‐bo Yang
中科院分区：
文献类型：
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作者：
B. Yin;Yin Zhao;Wei Yang;Min-min Pan;Ming‐bo Yang
采用广角x射线衍射（WAXD）和差示扫描量热法（DSC）研究了液晶聚合物/聚碳酸酯/（乙烯-丙烯酸甲酯-甲基丙烯酸缩水甘油酯）共聚物（LCP/PC/ E-MA-GMA）共混物中聚碳酸酯的强化结晶。LCP/PC/ E-MA-GMA 5/95/5共混物在200℃、2、4、6和10h退火后呈现出明显的PC结晶结构。所得的PC晶体表现出两个熔融温度，tm1约为214℃，tm2约为231℃，总熔合热为29J/g（退火时间=10h）。初步结果表明，LCP分散相与反应相容剂的协同作用可诱导非晶态PC结晶。
The enhanced crystallization of polycarbonate in the blend of liquid crystalline polymer/polycarbonate/(ethylene–methyl acrylate–glycidyl methacrylate) copolymer (LCP/PC/E–MA–GMA) was studied by wide angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC). The LCP/PC/E–MA–GMA 5/95/5 blends annealed at 200°C, for 2, 4, 6, and 10h, present an obvious crystalline structure corresponding to PC crystallization. The PC crystal obtained shows two melting temperature, Tm1of about 214°C and Tm2of about 231°C, with a total heat of fusion of 29J/g (annealing time=10h). The preliminary results indicate that amorphous PC can be induced to crystallization by the synergistic action of LCP dispersed phase and reactive compatibilizer.