Single Catalyst Enabled Synthesis of Olefin Block Copolymers (OBCs)

Chang-le Chen

doi:10.11777/j.issn1000-3304.2025.25111

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Single Catalyst Enabled Synthesis of Olefin Block Copolymers (OBCs)

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- Single Catalyst Enabled Synthesis of Olefin Block Copolymers (OBCs)
- Acta Polymerica Sinica Vol. 56, Issue 8, Pages: 1257-1260(2025)
- 作者机构：
  
  中国科学技术大学高分子科学与工程系合肥 230026
- 作者简介：
  
  Chang-le Chen, E-mail: changle@ustc.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2025.25111
  CLC：
- CSTR：32057.14.GFZXB.2025.7414
- Received：29 April 2025，
  
  Accepted：11 May 2025，
  
  Published Online：17 June 2025，
  
  Published：20 August 2025
- 稿件说明：
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陈昶乐. 单一催化剂制备烯烃嵌段共聚物(OBCs). 高分子学报, 2025, 56(8), 1257-1260

Chen, C. L. Single catalyst enabled synthesis of olefin block copolymers (OBCs). Acta Polymerica Sinica, 2025, 56(8), 1257-1260
陈昶乐. 单一催化剂制备烯烃嵌段共聚物(OBCs). 高分子学报, 2025, 56(8), 1257-1260 DOI： 10.11777/j.issn1000-3304.2025.25111. CSTR： 32057.14.GFZXB.2025.7414.

Chen, C. L. Single catalyst enabled synthesis of olefin block copolymers (OBCs). Acta Polymerica Sinica, 2025, 56(8), 1257-1260 DOI： 10.11777/j.issn1000-3304.2025.25111. CSTR： 32057.14.GFZXB.2025.7414.

摘要

使用一个催化剂制备乙烯基烯烃嵌段共聚物(OBCs)具有极高的科学挑战性：催化乙烯、

-烯烃共聚合时，需要催化剂同时具备高的以及低的

-烯烃选择性. 王洋和刘国明等通过催化体系设计解决了这一难题，在催化体系中引入动态配体调节这一概念，成功实现了单一催化剂、无链转移试剂制备OBCs. 这一方法创立了OBCs新的合成范式，有望改变现有OBCs工业化生产路径，并指导其他高性能聚合物材料合成.

Abstract

The preparation of ethylene-based block copolymers (OBCs) using a single catalyst represents a significant scientific challenge. During the catalytic copolymerization of ethylene and

-olefins

the catalyst must simultaneously exhibit both high and low

-olefin selectivity—an inherently conflicting requirement. Wang

Liu

and coworkers have addressed this problem through the rational design of a catalytic system. By introducing the concept of dynamic ligand modulation

they successfully realized the synthesis of OBCs using a single catalyst without the need for chain transfer agents. This approach establishes a novel synthetic paradigm for OBCs

offering the potential to transform current industrial production processes and providing valuable insights for the design and synthesis of other high-performance polymeric materials.

关键词

Keywords

references

Arriola D. J. ; Carnahan E. M. ; Hustad P. D. ; Kuhlman R. L. ; Wenzel T. T. Catalytic production of olefin block copolymers via chain shuttling polymerization . Science , 2006 , 312 ( 5774 ), 714 - 719 . doi: 10.1126/science.1125268 http://dx.doi.org/10.1126/science.1125268

Crawford K. E. ; Sita L. R. De novo design of a new class of "hard-soft" amorphous, microphase-separated, polyolefin block copolymer thermoplastic elastomers . ACS Macro Lett. , 2015 , 4 ( 9 ), 921 - 925 . doi: 10.1021/acsmacrolett.5b00447 http://dx.doi.org/10.1021/acsmacrolett.5b00447

Coates G. W. ; Waymouth R. M. Oscillating stereocontrol: a strategy for the synthesis of thermoplastic elastomeric polypropylene . Science , 1995 , 267 ( 5195 ), 217 - 219 . doi: 10.1126/science.267.5195.217 http://dx.doi.org/10.1126/science.267.5195.217

Lu , L , Li , Y , Meng , C , Liu , K , Yu , Y , Chen , H , Liu , G , Wang , Y . Single catalyst with dynamic ligands enabled synthesis of olefin block copolymers . J. Am. Chem. Soc. , 2025 , 147 ( 16 ), 13405 - 13414 . doi: 10.1021/jacs.4c18606 http://dx.doi.org/10.1021/jacs.4c18606

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