Recyclable Polypentenamers with Precise Crystallization and Versatile Functionalization

IF 5.1 1区化学 Q1 POLYMER SCIENCE

Macromolecules Pub Date : 2025-01-07 DOI:10.1021/acs.macromol.4c02655

Liangyu Chen, Zhihao Wang, En Fang, Yuhao Guo, Zhaoming Liu, Wei Song, Hanying Li, Junting Xu, Zhiqiang Fan, Mitchell A. Winnik, Shaofei Song

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引用次数: 0

Abstract

The recyclability and reuse of polymeric materials have become increasingly necessary. Introducing depolymerizability or degradability into polymers without compromising the mechanical performance but concurrently endowing the polymers with new properties is challenging. In this contribution, a family of polypentenamers with different alkyl side chains ranging from nonyl to octacosyl were synthesized. The polycyclopentene backbone provides polymer depolymerizability, promoting degradation into their original building blocks, which also can repolymerize into polymers, realizing full closed-loop recycling. Crystalline side chains help afford polyethylene-like strength and modulus. The lamellar thickness of sub-5 nm can be precisely controlled. Inserting an ethylene glycol unit along the side chain allowed them to be easily transferred into 10 kinds of new polyolefins with various functions. These degradable polycyclopentene-backboned polymers with crystalline pendants pave sustainable ways for the recyclability and reuse of polyolefin materials for, for example, packaging applications.

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来源期刊

Macromolecules 工程技术-高分子科学

CiteScore

9.30

自引率

16.40%

发文量

942

审稿时长

2 months

期刊介绍： Macromolecules publishes original, fundamental, and impactful research on all aspects of polymer science. Topics of interest include synthesis (e.g., controlled polymerizations, polymerization catalysis, post polymerization modification, new monomer structures and polymer architectures, and polymerization mechanisms/kinetics analysis); phase behavior, thermodynamics, dynamic, and ordering/disordering phenomena (e.g., self-assembly, gelation, crystallization, solution/melt/solid-state characteristics); structure and properties (e.g., mechanical and rheological properties, surface/interfacial characteristics, electronic and transport properties); new state of the art characterization (e.g., spectroscopy, scattering, microscopy, rheology), simulation (e.g., Monte Carlo, molecular dynamics, multi-scale/coarse-grained modeling), and theoretical methods. Renewable/sustainable polymers, polymer networks, responsive polymers, electro-, magneto- and opto-active macromolecules, inorganic polymers, charge-transporting polymers (ion-containing, semiconducting, and conducting), nanostructured polymers, and polymer composites are also of interest. Typical papers published in Macromolecules showcase important and innovative concepts, experimental methods/observations, and theoretical/computational approaches that demonstrate a fundamental advance in the understanding of polymers.