Miniemulsion Ring-Opening Radical Polymerization with Dibenzo[c,e]oxepan-5-thione for Degradable Polymer Particles

IF 4.4 2区化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Polymer Materials Pub Date : 2025-03-04 DOI:10.1021/acsapm.5c0008810.1021/acsapm.5c00088

Kaito Fuji, Yukiya Kitayama* and Atsushi Harada,

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引用次数: 0

Abstract

Polymer-based particulate materials are useful in various industries, but nondegradable polymeric particulate materials that generate microplastics pose challenges. Herein, we synthesized main-chain degradable polymer particles by radical ring-opening polymerization (rROP) in a miniemulsion system (miniemulsion rROP), in which dibenzo[c,e]oxepan-5-thione (DOT) was selected as the ring-opening monomer. Miniemulsion rROP of DOT and typical vinyl comonomers (styrene: St and n-butyl acrylate: nBA) was performed. The polymerization rate of the miniemulsion rROP was significantly higher than that of solution rROP. The DOT feed molar ratio in the miniemulsion rROP was increased to 20 mol % with high conversion. Colloidally stable poly(St-DOT) particles were successfully synthesized and were degraded by amine compounds in homogeneous and heterogeneously dispersed systems. Additionally, when nBA was used as the vinyl monomer, colloidally stable main-chain degradable poly(nBA-DOT) particles were successfully synthesized, and their degradation was observed with n-propylamine, evidencing the possibility of using miniemulsion rROP to synthesize degradable polymer particles.

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来源期刊

ACS Applied Polymer Materials Multiple-

CiteScore

7.20

自引率

6.00%

发文量

810

期刊介绍： ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.