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首页> 外文期刊>Journal of Applied Polymer Science >IN SITU REACTIVE COMPATIBILIZED NORYL/LCP BLENDS
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IN SITU REACTIVE COMPATIBILIZED NORYL/LCP BLENDS

机译：原位反应性兼容的NORYL / LCP共混物

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This article reveals that the already known improved properties of the thermoplastic-liquid crystalline polymer (LCP) blends can be further improved substantially over the corresponding noncompatibilized counterparts by using a reactive in situ type compatibilizer, the styrene-glycidyl methacrylate (SG) copolymer. This SG copolymer has been demonstrated in this article to be an effective reactive compatibilizer to improve the processability, heat deflection temperature, and mechanical properties of Noryl/LCP blends. The epoxy functional groups of the SG copolymer can react with the end groups of PPO (in Noryl) and LCP. The in situ-formed SG-g-LCP copolymer tends to reside along the interface of Noryl-LCP and reduces the interfacial tension during melt processing. The resultant LCP fibers in the Noryl matrix of the compatibilized blends have a higher aspect ratio because the fibers become finer, longer, and tend to form lamellate domains with a greater interphase contact area than those from the noncompatibilized blends. The compatibilized blends also improve the interphase adhesion between Noryl and LCP. The presence of ethyl triphenylphosphonium bromide catalyst promotes the grafting reaction to improve blend compatibilization. (C) 1995 John Wiley and Sons, Inc. [References: 47]
机译：该文章揭示了通过使用反应性原位型增容剂苯乙烯-甲基丙烯酸缩水甘油酯（SG）共聚物，与相应的不相容的对应物相比，热塑性-液晶聚合物（LCP）共混物的已知改进特性可以得到进一步改善。该SG共聚物已在本文中证明是有效的反应性增容剂，可改善Noryl / LCP共混物的加工性能，热变形温度和机械性能。 SG共聚物的环氧官能团可以与PPO（在Noryl中）和LCP的端基反应。原位形成的SG-g-LCP共聚物倾向于沿着Noryl-LCP的界面停留并降低熔融加工过程中的界面张力。相容混合物的Noryl基体中所得的LCP纤维具有较高的长径比，因为与未相容混合物相比，纤维变得更细，更长，并且倾向于形成具有更大的相间接触面积的层状微区。相容的共混物还改善了Noryl和LCP之间的相间粘附力。乙基三苯基溴化phosph催化剂的存在促进了接枝反应，从而改善了共混物的相容性。 （C）1995 John Wiley and Sons，Inc. [参考：47]

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