摘要
CO_(2)的过量排放形成“温室效应”导致全球温度升高,气候变暖,制备二氧化碳基聚碳酸酯(PPC)可对CO_(2)进行有效利用。PPC热稳定性差,刚性弱等因素限制了其规模化应用。在二氧化碳、环氧化合物体系中引入第三单体进行三元共聚合成稳定的、对环境友好的聚碳酸酯是最直接有效的化学改性办法。本文综述了环氧化合物、酯类以及酸酐类等第三单体在二氧化碳、环氧化合物反应体系中的共聚研究进展。已有的研究表明,催化剂的选择影响着对PPC的性能调控。环氧化合物为第三单体时,改性后PPC的热性能和力学性能得到明显提高;酯类为第三单体时,其降解性能也得到了改善;酸酐类为第三单体时能更有效地合成PPC。另外,第三单体带有功能性基团时能够得到功能型PPC,为今后PPC的进一步开发和利用提供更多思路和参考。
The excessive emission of carbon dioxide(CO_(2)) forms a "greenhouse effect",which leads to global temperature rise and climate warming.The preparation of CO_(2)-based polycarbonate(PPC) can effectively use CO_(2).However, the poor thermal stability and weak rigidity of PPC limited its large-scale application.The most direct and effective chemical modification method to PPC is to introduce a third monomer into the carbon dioxide and epoxy compound system for ternary copolymerization to synthesize stable and environment-friendly polycarbonate.This paper reviews the research progress of copolymerization of the third monomers(such as epoxy compounds, esters, and anhydrides) with the carbon dioxide and epoxy compound system.The research shows that the selection of catalyst affects the performance of PPC.When epoxy compounds are the third monomer, the thermal and mechanical properties of modified PPC are significantly improved;When esters are the third monomer, their degradation performance is also improved;PPC can be synthesized more effectively when anhydrides are the third monomer.In addition, functional PPC can be obtained when the third monomer has functional groups, which provides more ideas and references for the further development and utilization of PPC in the future.
作者
周利
王文珍
李磊磊
刘双
张亦乐
罗亮
ZHOU Li;WANG Wenzhen;LI Leilei;LIU Shuang;ZHANG Yile;LUO Liang(College of Chemistry&Chemical Engineering,Xi’an Shiyou University,Xi’an,Shaanxi 710065,China)
出处
《西安石油大学学报（自然科学版）》
CAS
北大核心
2023年第1期150-156,共7页
Journal of Xi’an Shiyou University（Natural Science Edition）
基金
国家自然科学基金(52073228)
陕西自然科学基金(2019JQ-489,18JK0607)
西安石油大学研究生创新与实践能力培养项目(YCS21113111)。
关键词
聚碳酸酯
二氧化碳
第三单体
三元共聚
改性
polycarbonate
carbon dioxide
third monomer
ternary copolymerization
modification
