Poly(propylene carbonate) networks with excellent properties: Terpolymerization of carbon dioxide, propylene oxide, and 4,4ʹ-(hexafluoroisopropylidene) diphthalic anhydride

Yi-Le Zhang,Wen-Zhen Wang,Sai-Di Zhao,Lei-Lei Li,Kai-Yue Zhang,Li Wang

doi:10.1515/epoly-2021-0056

Abstract

Abstract Poly(propylene carbonate) (PPC) is an emerging low-cost biodegradable plastic with potential application in many fields. However, compared with polyolefin plastics, the major limitations of PPC are its poor mechanical and thermal properties. Herein, a thermoplastic PPC containing cross-linked networks, one-pot synthesized by the copolymerization of carbon dioxide, propylene oxide, and 4,4ʹ-(hexafluoroisopropylidene) diphthalic anhydride, had excellent thermal and mechanical properties and dimensional stability. The weight-average molecular weight and the polymer yield of the PPC5 were up to 212 kg mol−1 and 104 gpolym gcat −1, respectively. The 5% thermal weight loss temperature reached 320°C, and it could withstand a tensile force of 52 MPa. This cross-linked PPC has excellent properties and is expected to be used under extreme conditions, as the material can withstand strong tension and will not deform.

Highlights

Poly(propylene carbonate) (PPC) is an emerging low-cost biodegradable plastic with potential application in many fields
Zinc oxide, and 6FDA were purchased from Aladdin Industrial Corporation, and zinc glutarate (ZnGA) was synthesized according to the literature [28]
The hard block product, dissolved in trichloromethane containing a 5% hydrochloric acid solution to decompose ZnGA, was precipitated three times in ethanol to remove a small amount of propylene carbonate

Summary

Introduction

Abstract: Poly(propylene carbonate) (PPC) is an emerging low-cost biodegradable plastic with potential application in many fields. Compared with polyolefin plastics, the major limitations of PPC are its poor mechanical and thermal properties. A thermoplastic PPC containing cross-linked networks, one-pot synthesized by the copolymerization of carbon dioxide, propylene oxide, and 4,4ʹ-(hexafluoroisopropylidene) diphthalic anhydride, had excellent thermal and mechanical properties and dimensional stability. The 5% thermal weight loss temperature reached 320°C, and it could withstand a tensile force of 52 MPa. The 5% thermal weight loss temperature reached 320°C, and it could withstand a tensile force of 52 MPa This crosslinked PPC has excellent properties and is expected to be used under extreme conditions, as the material can withstand strong tension and will not deform

Methods

Results

Conclusion