Efficient control of ethylene–norbornene copolymerization behavior of a fluorenylamido-ligated titanium complex: substituent effects of the amido ligand and copolymer properties†,Polymer Chemistry

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Efficient control of ethylene–norbornene copolymerization behavior of a fluorenylamido-ligated titanium complex: substituent effects of the amido ligand and copolymer properties†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-08-06 00:00:00 , DOI: 10.1039/c8py00943k
Huajin Wang _{1,

2,

3,

4,

5} , Hailong Cheng _{1,

2,

3,

4,

5} , Ryo Tanaka _{6,

7,

8,

9} , Takeshi Shiono _{6,

7,

8,

9} , Zhengguo Cai _{1,

2,

3,

4,

5}

Affiliation

Copolymerization behavior is the most critical factor in the properties of polymeric materials. Highly active copolymerization of ethylene and norbornene was explored using (fluorenyl)(amido)titanium complexes bearing substituted amido ligands. The norbornene content and norbornene sequence distribution of the copolymers were controllable by changing the comonomer feed ratio and the polymerization temperature, respectively. The evaluation of the monomer reactivity ratios indicated that the copolymerization behavior of the (fluorenyl)(amido)titanium complex was tunable from alternating to random nature. The thermal and mechanical properties of the resulting copolymers depended on the sequence distribution of norbornene.

中文翻译：

芴基-氨基连接的钛配合物的乙烯-降冰片烯共聚行为的有效控制：酰胺配体的取代基效应和共聚物性能†

共聚行为是聚合物材料性能中最关键的因素。使用带有取代的酰胺基配体的（芴基）（酰胺）钛络合物探索了乙烯和降冰片烯的高活性共聚。分别通过改变共聚单体进料比和聚合温度，可控制共聚物的降冰片烯含量和降冰片烯序列分布。单体反应性比的评估表明，（芴基）（酰胺基）钛配合物的共聚行为可从交替性质改变为无规性质。所得共聚物的热和机械性能取决于降冰片烯的序列分布。

更新日期：2018-08-06

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