环氧丙烷
环氧氯丙烷
材料科学
催化作用
化学工程
氧化物
共聚物
高分子化学
聚合物
多相催化
有机化学
环氧乙烷
化学
工程类
作者
Yufei Liang,Tingting Zhao,Shuanjin Wang,Dongmei Han,Sheng Huang,Wei Liu,Hui Guo,Min Xiao,Yuezhong Meng
标识
DOI:10.1002/cplu.202500175
摘要
As the sole commercial polycarbonate derived from CO 2 , poly(propylene carbonate) (PPC) is still hindered by poor thermal stability and a low glass transition temperature. Herein, first, the terpolymerization of CO 2 , propylene oxide (PO), and epichlorohydrin (ECH) to synthesize PPC‐ECH terpolymers via one‐pot and metal‐free method using multinuclear organoboron catalysts is reported. The PPC‐ECH terpolymers with well‐rounded properties can be easily synthesized by adjusting reaction conditions, monomer ratios, catalyst types, and loading. The molecular weight of the PPC‐ECH terpolymer can reach up to 59.4 kg mol −1 , which is the highest known. Notably, the synthesized PPC‐ECH exhibits outstanding barrier performance with oxygen permeability as low as 1.31 cm 3 mm (m 2 day) −1 and water vapor permeability as low as 0.016 g mm (m 2 day) −1 , significantly lower than those of pure PPC or other common packaging materials. Importantly, the introduction of a small amount of ECH not only preserves the biodegradability of polycarbonate but also markedly enhances its mechanical properties, glass transition temperature, thermal stability, and flame retardancy, offering promising prospects for application in packaging materials.
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