Organocatalytic Ring-Opening (Co)polymerization of Six-Membered Monothiocarbonates for the Synthesis of Recyclable Poly(monothiocarbonate)s

IF 5.1 1区化学 Q1 POLYMER SCIENCE

Macromolecules Pub Date : 2025-02-17 DOI:10.1021/acs.macromol.4c03028

Jianghui Li, Yingying Zhang, Yang Li, Chengjian Zhang, Xinghong Zhang

引用次数: 0

Abstract

Developing chemically depolymerizable polymers (CDPs) that can revert back to monomers is of great significance for realizing a circular polymer economy. Poly(thiocarbonate)s, sulfur analogs of polycarbonates, are a rather under-investigated group of sulfur-enriched polymers with high potential as CDPs. Here, we report a recyclable poly(monothiocarbonate) obtained via organocatalytic ring-opening polymerization of a six-membered cyclic monothiocarbonate. The resulting polymer exhibited a melting point up to 127 °C and a Young’s modulus of 305 MPa with a tensile stress of 23.2 MPa at 8.8% strain, while the analogue polycarbonate derived from trimethylene carbonate is amorphous with a low modulus (<100 MPa) under ambient temperature. Moreover, a successful copolymerization of 1,3-oxathian-2-one and 5,5-dimethyl-1,3-oxathian-2-one provided an access to precise tunability of thermomechanical performance of the poly(monothiocarbonate)s.

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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.