Effects of Crosslinking Catalyst on Properties of Polytriazole-crosslinked Solid Elastomer

被引：0

作者：

Zhang Y.-L. ^{[1
]}

Yang R.-J. ^{[2
]}

Zhang W.-H. ^{[1
]}

Gao X.-F. ^{[1
]}

Jiang E.-Z. ^{[1
]}

Zhang Y.-X. ^{[1
]}

机构：

[1] Xi'an North Huian Chemical Industry Co. Ltd, Xi'an

[2] School of materials, Beijing Institute of Technology Beijing, Beijing

来源：

Hanneng Cailiao/Chinese Journal of Energetic Materials | 2022年 / 30卷 / 08期

关键词：

catalyst; click chemistry; elastomer; propargyl‑terminated ethylene oxide‑tetrahydrofuran copolymer;

D O I：

10.11943/CJEM2021212

中图分类号：

学科分类号：

摘要：

The effect of crosslinking catalyst Copper 2，4‑glutarate‑cyclooctadiene complex dosage on the properties of polytriazole‑crosslinked solid elastomer was studied. Propargyl‑terminated ethylene oxide‑tetrahydrofuran copolymer（PTPET）was used as an adhesive and polyazide compound as an curing agent，a series of polytriazole‑crosslinked solid elastomers S1-S4 were prepared by adding crosslinked catalysts of 0.01%，0.02%，0.05% and 0.10%. The chemical structure，thermal stability，mechanical properties and network structure of polytriazole‑crosslinked solid elastomers were characterized by FTIR，TG，equi‑ librium swelling method and DMA. It was found that PTPET elastomer is more stable than PET elastomer，the dosage of the cata‑ lyst did not influence the thermal stability of the elastomer，and the decomposition temperature for all samples is at 405 ℃. The elastomer S2 with 0.02% crosslinking catalyst has the most perfect network structure and the best mechanical properties，and the glass transition temperature is -67.4 ℃. © 2022 Institute of Chemical Materials, China Academy of Engineering Physics. All rights reserved.

引用

页码：787 / 792

页数：5