Dual Cross-linked Eucommia Ulmoides Gum with Reprocessibility, Shape Memory Capability and Broadband Sound Absorption at Low Frequency

IF 4 2区化学 Q2 POLYMER SCIENCE

Chinese Journal of Polymer Science Pub Date : 2025-07-22 DOI:10.1007/s10118-025-3384-9

Qing-Gang Ni, Rui Mi, Biao Ou-Yang, Jian-Hua Wu, Peng Kong, You-Ji Li, Xiao-Chun Peng

{"title":"Dual Cross-linked Eucommia Ulmoides Gum with Reprocessibility, Shape Memory Capability and Broadband Sound Absorption at Low Frequency","authors":"Qing-Gang Ni, Rui Mi, Biao Ou-Yang, Jian-Hua Wu, Peng Kong, You-Ji Li, Xiao-Chun Peng","doi":"10.1007/s10118-025-3384-9","DOIUrl":null,"url":null,"abstract":"<div>An inverse vulcanized polymer, SZIM combining Zn2+-imidazole coordination bonds and polysulfide bonds was synthesized and incorporated into bio-based Eucommia ulmoides gum (EUG) to generate EUG-SZIM-xs. The residual crystallinity of the EUG matrix synergistically interacted with the dual cross-linking networks to establish reversible deformation domains, providing EUG-SZIM-xs with quick shape memory capability at moderate temperatures. The damping properties were also investigated, and EUG-SZIM-xs displayed high tanδ values (>0.3) when the SZIM dosage was higher than 5.5 phr, which showed a positive correlation with SZIM concentration. Such good damping performance endowed the EUG-SZIM-xs with broadband low-frequency sound absorption. In addition, the dual cross-linking networks endowed the materials with reprocessability under different catalytic systems, and the 1,8-diazobicyclic[5.4.0]undeca-7-ene (DBU)-catalyzed samples exhibited better mechanical properties than EUG-SZIM-xs.</div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"43 10","pages":"1875 - 1884"},"PeriodicalIF":4.0000,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Journal of Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10118-025-3384-9","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

An inverse vulcanized polymer, SZIM combining Zn²⁺-imidazole coordination bonds and polysulfide bonds was synthesized and incorporated into bio-based Eucommia ulmoides gum (EUG) to generate EUG-SZIM-xs. The residual crystallinity of the EUG matrix synergistically interacted with the dual cross-linking networks to establish reversible deformation domains, providing EUG-SZIM-xs with quick shape memory capability at moderate temperatures. The damping properties were also investigated, and EUG-SZIM-xs displayed high tanδ values (>0.3) when the SZIM dosage was higher than 5.5 phr, which showed a positive correlation with SZIM concentration. Such good damping performance endowed the EUG-SZIM-xs with broadband low-frequency sound absorption. In addition, the dual cross-linking networks endowed the materials with reprocessability under different catalytic systems, and the 1,8-diazobicyclic[5.4.0]undeca-7-ene (DBU)-catalyzed samples exhibited better mechanical properties than EUG-SZIM-xs.

查看原文本刊更多论文

双交联杜仲胶具有可再加工性、形状记忆能力和低频宽带吸声性能

合成了一种结合Zn2+-咪唑配位键和多硫键的反硫化聚合物SZIM，并将其掺入生物基杜仲胶（EUG）中生成EUG-SZIM-xs。EUG基体的剩余结晶度与双交联网络协同作用，建立可逆变形域，为EUG- szim -xs提供了在中等温度下的快速形状记忆能力。结果表明，当SZIM用量大于5.5 phr时，EUG-SZIM-xs的tanδ值较高（>0.3），与SZIM浓度呈正相关。这种良好的阻尼性能使EUG-SZIM-xs具有宽带低频吸声能力。此外，双交联网络赋予了材料在不同催化体系下的可再加工性，并且1,8-重氮双环[5.4.0]十一烷-7-烯（DBU）催化的样品具有比EUG-SZIM-xs更好的力学性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Chinese Journal of Polymer Science 化学-高分子科学

CiteScore

7.10

自引率

11.60%

发文量

218

审稿时长

6.0 months

期刊介绍： Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985. CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.