{"title":"单质硫的利用:具有增强机械性能的可再加工共价交联聚二硫化合物的构建","authors":"Ji-Yan Chao, Tian-Jun Yue, Xiaobing Lu, Wei-Min Ren","doi":"10.1039/d5py00085h","DOIUrl":null,"url":null,"abstract":"Herein, a polydisulfide with uniformly distributed aldehyde groups was prepared through the terpolymerization of an aldehyde-containing episulfide, 2-(phenoxymethyl)thiirane, and elemental sulfur. A thermoset polydisulfide with a crosslinking network was constructed by leveraging the Schiff base reaction between amines and aldehyde groups. Compared to the linear polymers, the crosslinked polydisulfide exhibited a 2–10 °C increase in its glass transition temperature. In addition, the covalent crosslinking network enhanced the mechanical properties of the polydisulfide compared to those of the original linear polymer, and the mechanical properties could be modulated by adjusting the crosslinking density of the polymer. Moreover, the polymer exhibited processability and shape-memory properties when heated to a specific temperature.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"37 1","pages":""},"PeriodicalIF":4.1000,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Elemental sulfur utilization: Construction of a reprocessable covalent crosslinked polydisulfide with enhanced mechanical properties\",\"authors\":\"Ji-Yan Chao, Tian-Jun Yue, Xiaobing Lu, Wei-Min Ren\",\"doi\":\"10.1039/d5py00085h\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Herein, a polydisulfide with uniformly distributed aldehyde groups was prepared through the terpolymerization of an aldehyde-containing episulfide, 2-(phenoxymethyl)thiirane, and elemental sulfur. A thermoset polydisulfide with a crosslinking network was constructed by leveraging the Schiff base reaction between amines and aldehyde groups. Compared to the linear polymers, the crosslinked polydisulfide exhibited a 2–10 °C increase in its glass transition temperature. In addition, the covalent crosslinking network enhanced the mechanical properties of the polydisulfide compared to those of the original linear polymer, and the mechanical properties could be modulated by adjusting the crosslinking density of the polymer. Moreover, the polymer exhibited processability and shape-memory properties when heated to a specific temperature.\",\"PeriodicalId\":100,\"journal\":{\"name\":\"Polymer Chemistry\",\"volume\":\"37 1\",\"pages\":\"\"},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2025-07-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Polymer Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1039/d5py00085h\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d5py00085h","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
Elemental sulfur utilization: Construction of a reprocessable covalent crosslinked polydisulfide with enhanced mechanical properties
Herein, a polydisulfide with uniformly distributed aldehyde groups was prepared through the terpolymerization of an aldehyde-containing episulfide, 2-(phenoxymethyl)thiirane, and elemental sulfur. A thermoset polydisulfide with a crosslinking network was constructed by leveraging the Schiff base reaction between amines and aldehyde groups. Compared to the linear polymers, the crosslinked polydisulfide exhibited a 2–10 °C increase in its glass transition temperature. In addition, the covalent crosslinking network enhanced the mechanical properties of the polydisulfide compared to those of the original linear polymer, and the mechanical properties could be modulated by adjusting the crosslinking density of the polymer. Moreover, the polymer exhibited processability and shape-memory properties when heated to a specific temperature.
期刊介绍:
Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.