In situ polymerization of poly(styrene-alt-maleic anhydride)/organic montmorillonite nanocomposites and their ionomers as crystallization nucleating agents for poly(ethylene terephthalate)
In situ polymerization of poly(styrene-alt-maleic anhydride)/organic montmorillonite nanocomposites and their ionomers as crystallization nucleating agents for poly(ethylene terephthalate)
复制标题
聚(苯乙烯-马来酸酐)/有机蒙脱土纳米复合材料及其离聚物作为聚对苯二甲酸乙二醇酯结晶成核剂的原位聚合
DOI：
10.1016/j.jiec.2016.04.020
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发表时间：
2016
影响因子：
6.1
通讯作者：
Tang Ping
中科院分区：
文献类型：
--
作者：
Xing Shili;Li Rui;Si Jingjing;Tang Ping
通过苯乙烯和马来酸酐的原位聚合，制备了聚（苯乙烯-马来酸酐共聚物）/有机蒙脱土（SMA/OMMT）纳米复合材料。OMMT在SMA共聚物中分散良好，可形成离聚物/OMMT（IM）纳米复合材料。采用差示扫描量热法（DSC）研究了IM作为聚对苯二甲酸乙二酯（PET）成核剂的结晶行为。IMs的加入，由于其与PET之间良好的相容性和OMMT的剥离提供的大界面，可作为异相成核剂，显著加快PET的结晶速率，提高熔融结晶温度。
The poly(styrene-alt-maleic anhydride)/organic montmorillonite (SMA/OMMT) nanocomposites are obtained through in situ polymerization of styrene and maleic anhydride. The OMMT is exfoliated into small platelets and dispersed well in SMA copolymers, which is thus easily made into ionomers/OMMT (IM) nanocomposites. The IMs are employed as nucleating agents for poly(ethylene terephthalate) (PET) and the crystallization behavior is investigated by DSC isothermally and non-isothermally, respectively. The crystallization rate of PET is significantly accelerated and melt-crystallization temperature is increased with the addition of IMs which acted as heterogeneous nucleating agent due to good miscibility between anhydride and PET, and large interfaces provided by exfoliated OMMT.