Volume 43, Issue 13 pp. 1560-1567
Concise Report

Synthesis of Graft-Modified Polyolefin Compatibilizers for Compatibilizing Mixed Plastics

Yu Chen

Yu Chen

Institute of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei, Anhui, 230601 China

These authors contributed equally.

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Yuxin Ding

Yuxin Ding

Institute of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei, Anhui, 230601 China

These authors contributed equally.

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Pei Li

Pei Li

Institute of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei, Anhui, 230601 China

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Wanlu Tian

Wanlu Tian

Institute of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei, Anhui, 230601 China

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Yu Wang

Corresponding Author

Yu Wang

CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Fuzhou Wang

Corresponding Author

Fuzhou Wang

Institute of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei, Anhui, 230601 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Chen Tan

Corresponding Author

Chen Tan

Institute of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei, Anhui, 230601 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
First published: 11 April 2025

Comprehensive Summary

Recycling polyolefin and other plastic mixtures encounters significant obstacles due to the intricate nature and economic inefficiencies of physically separating vast streams of mixed waste. Incorporating compatibilizers emerges as a viable strategy to diminish interfacial energy and bolster compatibility, ultimately yielding homogeneous products. In this contribution, polar polyolefins featuring metal dynamic cross-linking networks were synthesized by tandem polymerizing ionic cluster type polar monomers and olefins. Subsequent treatment with HCl aqueous solution and esterification with polyester precursors yields high-performance grafted polar polyolefins for mixed polymer compatibilizing. For PP/PC melting blends, adding 5 wt% of graft-modified polyolefin results in tougher blends that surpass the performance of corresponding virgin iPP in elongation at break (εb). Polar polyolefins containing sodium carboxylate groups play a dual role in compatibilizing PET/HDPE blends, acting both as compatibilizers and nucleating agents. Moreover, this strategy enables the production of grafted polyolefins comprising ternary polymers, which can be employed in compatibilizing ternary blends.

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