可化学降解类聚烯烃材料的制备及性能研究  

Preparation and Properties of Chemically Degradable Polyolefin-Like Materials

作　　者：张立国 李武 程岚军 李有桂 ZHANG Liguo;LI Wu;CHENG Lanjun;LI Yougui(AVIC The First Aircraft Institute,Xi'an 710089,China;School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]航空工业第一飞机设计研究院,陕西西安710089 [2]合肥工业大学化学与化工学院,安徽合肥230009

出　　处：《中国材料进展》2024年第5期440-447,共8页Materials China

摘　　要：聚烯烃(主要是聚乙烯和聚丙烯)是应用最为广泛的高分子材料之一,但其广泛的使用也带来了日益严重的环境污染,为人类生存和地球生态圈带来了前所未有的挑战。通过开环易位聚合(ROMP)的方法合成“类聚烯烃”,合成步骤简单,在控制聚合物组成、分子量和分散性等方面具有显著优势,可以通过引入极性官能团合成对环境友好、绿色的可降解“类聚烯烃”材料。以二醇和十一烯酰氯为原料,合成了3种双烯酯类单体,在GrubbsⅡ催化剂的作用下分别与环辛烯(COE)、二聚环戊二烯(DCPD)生成热塑型和热固型2种类聚烯烃,并进行了结构表征和性能测试。研究结果表明,所合成的类聚烯烃材料的力学性能良好且可化学降解。Polyolefins(mainly polyethylene and polypropylene)are one of the most widely used polymers.However,its widespread use has caused severe environment pollution problems,posing unprecedented challenges to humanity and the Earths ecosystem.The synthetic strategies to synthesis polymers by ring-opening metathesis polymerization(ROMP)exhibit various advantages,such as simple synthesis steps,well control of polymer composition,molecular weight and molecular weight dispersity could be achieved by ROMP.Environmentally cleaner and greener degradable polyolefin-like materials can be synthesized by adding polar functional groups.Three types of diene ester monomers were synthesized using diol and undecyloyl chloride as raw materials by GrubbsⅡcatalyst,two types of polyolefins,namely thermoplastic and thermosetting,were generated from cyclohexene and dimer cyclopentadiene,and their structures were characterized and performance tests were conducted.The research results indicated that the synthesized polyolefin-like materiasl had good mechanical properties and can be chemically degraded.

关 键 词：类聚烯烃 开环易位聚合(ROMP) 化学降解 热塑塑料 热固塑料 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]