文章信息/Info

Title:

Preparation and Properties of Chemically Degradable Polyolefin-Like Materials

文章編號:

1674—3962 (2024)05-0000-00

作者:

張立國; 李武; 程嵐軍; 李有桂

1. 航空工業第一飛機設計研究院，陜西 西安 710089 2. 合肥工業大學化學與化工學院，安徽 合肥 230009

Author(s):

ZHANG Liguo;  LI Wu;  CHENG Lanjun;  LI Yougui

1. AVIC The First Aircraft Institute, Xi’an 710089, China 2. School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China

關鍵詞:

類聚烯烴; 開環易位聚合(ROMP); 化學降解; 熱塑塑料; 熱固塑料

Keywords:

polyolefin-like materials;  ring-opening metathesis polymerization (ROMP);  chemical degradation;  thermoplastics;  thermosets

分類號:

TQ325.1

DOI:

10.7502/j.issn.1674-3962.202309005

文獻標志碼:

A

摘要:

聚烯烴（主要是聚乙烯和聚丙烯）是應用最為廣泛的高分子材料之一，但其廣泛的使用也帶來了日益嚴重的環境污染，為人類生存和地球生態圈帶來了前所未有的挑戰。通過開環易位聚合(ROMP)的方法合成“類聚烯烴”，合成步驟簡單,在控制聚合物組成、分子量和分散性等方面具有顯著優勢，可以通過引入極性官能團合成對環境友好、綠色的可降解“類聚烯烴”材料。以二醇和十一烯酰氯為原料，合成了3種雙烯酯類單體，在Grubbs Ⅱ催化劑的作用下分別與環辛烯（COE）、二聚環戊二烯（DCPD）生成熱塑型和熱固型2種類聚烯烴，并進行了結構表征和性能測試。研究結果表明，所合成的類聚烯烴材料的力學性能良好且可化學降解。

Abstract:

Polyolefins (mainly polyethylene and polypropylene) are one of the most widely used polymers. However, it’s widespread use has caused severe environment pollution problems, posing unprecedented challenges to humanity and the Earth’s ecosystem. The synthetic strategies to synthesis polymers by ring�瞣pening 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 Grubbs Ⅱ catalyst, 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.