极限抗拉强度
材料科学
聚合
聚乙烯
聚酯纤维
聚合物
聚丙烯
延伸率
高分子化学
二醇
摩尔质量
烷基
化学工程
复合材料
有机化学
化学
工程类
作者
M Kojima,Xiuxiu Wang,Lance P. Go,Ryoji Makino,Yuichi Matsumoto,Daisuke Shimoyama,Mohamed Mehawed Abdellatif,Joji Kadota,Satoru Higashi,Hiroshi Honda,Kotohiro Nomura
出处
期刊:ACS Macro Letters
[American Chemical Society]
日期:2023-10-04
卷期号:12 (10): 1403-1408
标识
DOI:10.1021/acsmacrolett.3c00481
摘要
Synthesis of high molecular weight polyesters prepared by acyclic diene metathesis (ADMET) polymerization of bis(undec-10-enoate) with isosorbide (M1), isomannide (M2), and 1,3-propanediol (M3) and the subsequent hydrogenation have been achieved by using a molybdenum-alkylidene catalyst. The resultant polymers (P1) prepared by the ADMET polymerization of M1 (in toluene at 25 °C) possessed high Mn values (Mn = 44400-49400 g/mol), and no significant differences in the Mn values and the PDI (Mw/Mn) values were observed in the samples after the hydrogenation. Both the tensile strength and the elongation at break in the hydrogenated polymers from M1 (HP1) increased upon increasing the molar mass, and the sample with an Mn value of 48200 exhibited better tensile properties (tensile strength of 39.7 MPa, elongation at break of 436%) than conventional polyethylene, polypropylene, as well as polyester containing C18 alkyl chains. The tensile properties were affected by the diol segment employed, whereas HP2 showed a similar property to HP1.
科研通智能强力驱动
Strongly Powered by AbleSci AI