Polyacetaldehyde may exist in atactic, syndiotactic and isotactic forms.
聚乙醛可以以无规，间同和全同形式存在。
The research development in catalysts for Syndiotactic polymerization of styrene is re-viewed .
本文综述了制备间规聚苯乙烯用催化剂的研究进展。
The catalytic systems and polymerization mechanism of styrene syndiotactic polymerization were reviewed with 29 references.
对苯乙烯间规聚合的催化体系，聚合机理和研究现状等方面进行了较全面地综述。
The complex polymorphism and the structural characteristic of various crystal forms are reviewed in syndiotactic polypropylene.
综述间规聚丙烯复杂的多晶型现象以及各晶型的结构特点。
Introduce briefly the new engineering plastics syndiotactic polystyrene, including its structure, property, processing and application, etc.
简要介绍新型工程塑料间同立构结晶型聚苯乙烯的结构、性能、加工及其应用。
This paper briefly described the formation cause of polymorphism of syndiotactic polystyrene (sPS) and the method for analyzing the polymorphism of sPS.
概述了间规聚苯乙烯多晶的成因及分析方法。
Peroxide crosslinking of syndiotactic polypropylene (sPP) in the presence of trimethylolpropane trimethacrylate (TMPTMA) was studied by using DSC method.
用DSC对三羟甲基丙烷三甲基丙烯酸酯（TMPTMA）存在下的间规聚丙烯过氧化物交联进行了研究。
Peroxide crosslinking of syndiotactic polypropylene (sPP) in the presence of trimethylolpropane trimethacrylate (TMPTMA) was studied by using DSC method.
用DSC对三羟甲基丙烷三甲基丙烯酸酯（TMPTMA）存在下的间规聚丙烯过氧化物交联进行了研究。
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