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OALib Journal期刊
ISSN: 2333-9721
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用半连续法制备高交联度三维有序聚苯乙烯微球
Keywords: 材料合成与加工工艺,半连续法,高交联度,单分散聚苯乙烯
Abstract:
？建立了一种合成高交联度单分散聚苯乙烯的方法--半连续无皂乳液聚合法,用此法合成的聚苯乙烯交联度可达到50%以上。调整交联剂的加入时间可有效地控制聚苯乙烯粒子的粒度,制备出高质量高交联度三维有序亚微米级聚苯乙烯微球。揭示了半连续无皂乳液聚合法中合成聚苯乙烯的聚合机理。聚合反应动力学表明：聚合反应开始后加入交联剂,可以使聚苯乙烯单体在低转化率情况下快速进入第二成核期。交联剂的加入时间和含量影响聚苯乙烯粒子的粒度、单分散性、球形度和溶解性能。
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