石油化工2026，Vol.55Issue(5)：720-726,7.DOI:10.3969/j.issn.1000-8144.2026.05.010
1-丁烯/1-辛烯共聚物的合成及其性能
Synthesis and performance of 1-butene/1-octene copolymer
摘要
Abstract
A 1-butene/1-octene copolymer was prepared by homogeneous bulk polymerization using a novel Ziegler-Natta catalyst.The effects of 1-octene incorporation on the structure and crystal transformation behavior of polybutene-1(PB-1)were investigated by IR,13C NMR,DSC,and XRD.The experimental results demonstrate that the copolymerization activity of 1-butene and 1-octene reaches above 23 kg/(g·h),and the reactivity ratio is 1.837 and 0.629,respectively.The introduction of 1-octene leads to a decrease in the[mmmm]content in the copolymer,effectively reduces the melting point,enthalpy of fusion,and crystallization temperature of the copolymer,and inhibits the transformation of PB-1 from crystal form Ⅱ to crystal form Ⅰ.When the 1-octene content reaches 3.30%(x),the copolymer remains mainly in crystal form Ⅱ within 90 d of aging,and no significant crystal transformation is observed.关键词
1-辛烯/共聚/熔点/结晶/晶型转变Key words
1-octene/copolymerization/melting point/crystallization/crystal transformation分类
化学化工引用本文复制引用
蒋俊楷,杜改平,袁浩,陈江波,蒋斌波..1-丁烯/1-辛烯共聚物的合成及其性能[J].石油化工,2026,55(5):720-726,7.基金项目
重点新材料研发及应用国家科技重大专项项目(2025ZD0613900). （2025ZD0613900）
