低聚二甲基硅氧烷末端羟基与正钛酸异丙醚相互作用的过程

V. Y. Chuklanov, K. Smirnov, Natalia V. Chuklanova
{"title":"低聚二甲基硅氧烷末端羟基与正钛酸异丙醚相互作用的过程","authors":"V. Y. Chuklanov, K. Smirnov, Natalia V. Chuklanova","doi":"10.37952/roi-jbc-01/19-60-10-36","DOIUrl":null,"url":null,"abstract":"The process of oligodimethylsiloxane with terminal hydroxyl groups and isopropyl ether of orthotitanic acid interaction was studied. This process leads to the formation of dimethylsiloxane elastomer, which is a valuable product in the production of sealing materials, high-temperature protective coatings, the starting product for heat-conducting pastes. The synthesis was carried out at a temperature of 25 оС due to the interaction of the terminal hydroxyl groups of the oligomer and the isopropoxy groups of the orthotitanic acid ester. The reaction was accompanied by the release of isopropyl alcohol, which was effectively removed from the reaction zone due to its high volatility. Along with the polycondensation reaction, an additional hydrolysis reaction of unreacted orthotitanic acid ether in the presence of atmospheric moisture is possible. The final product of the reaction was titanium oxide. The authors also analyzed the characteristics of the resulting polymer. The average particle size of titanium dioxide was determined using a microanalyzer HoribaLB-550, it was 45 nm. The effect of reaction time and hardener content on the properties of polydimethylsiloxane was studied. The optimal conditions for the synthesis were established. The optical properties of the polymer were studied using UV-VIS spectroscopy on the Unico-2800 spectrometer. It was found that the use of orthotitanic acid ether leads to a strong absorbing effect in the shortwave region of the spectrum, starting from 400 nm. Depending on the content of orthotitanic acid isopropyl ether and curing time, Shore A hardness was determined. The adhesive properties of the composition on a glass and steel substrate were studied. Tear strength reached 2.2 MPa.","PeriodicalId":9405,"journal":{"name":"Butlerov Communications","volume":"62 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The process of oligodimethylsiloxane with terminal hydroxyl groups and isopropyl ether of orthotitanic acid interaction\",\"authors\":\"V. Y. Chuklanov, K. Smirnov, Natalia V. Chuklanova\",\"doi\":\"10.37952/roi-jbc-01/19-60-10-36\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The process of oligodimethylsiloxane with terminal hydroxyl groups and isopropyl ether of orthotitanic acid interaction was studied. This process leads to the formation of dimethylsiloxane elastomer, which is a valuable product in the production of sealing materials, high-temperature protective coatings, the starting product for heat-conducting pastes. The synthesis was carried out at a temperature of 25 оС due to the interaction of the terminal hydroxyl groups of the oligomer and the isopropoxy groups of the orthotitanic acid ester. The reaction was accompanied by the release of isopropyl alcohol, which was effectively removed from the reaction zone due to its high volatility. Along with the polycondensation reaction, an additional hydrolysis reaction of unreacted orthotitanic acid ether in the presence of atmospheric moisture is possible. The final product of the reaction was titanium oxide. The authors also analyzed the characteristics of the resulting polymer. The average particle size of titanium dioxide was determined using a microanalyzer HoribaLB-550, it was 45 nm. The effect of reaction time and hardener content on the properties of polydimethylsiloxane was studied. The optimal conditions for the synthesis were established. The optical properties of the polymer were studied using UV-VIS spectroscopy on the Unico-2800 spectrometer. It was found that the use of orthotitanic acid ether leads to a strong absorbing effect in the shortwave region of the spectrum, starting from 400 nm. Depending on the content of orthotitanic acid isopropyl ether and curing time, Shore A hardness was determined. The adhesive properties of the composition on a glass and steel substrate were studied. Tear strength reached 2.2 MPa.\",\"PeriodicalId\":9405,\"journal\":{\"name\":\"Butlerov Communications\",\"volume\":\"62 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-10-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Butlerov Communications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.37952/roi-jbc-01/19-60-10-36\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Butlerov Communications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.37952/roi-jbc-01/19-60-10-36","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

研究了端羟基低聚二甲基硅氧烷与正钛酸异丙醚相互作用的过程。二甲基硅氧烷弹性体是生产密封材料、高温防护涂料、导热糊的起始产品等方面的宝贵产品。由于低聚物末端羟基与正钛酸酯的异丙氧基相互作用,在25 оС的温度下进行了合成。该反应伴随着异丙醇的释放,由于其高挥发性,异丙醇被有效地从反应区移除。随着缩聚反应,在大气湿度存在下,未反应的正钛酸醚的附加水解反应是可能的。反应的最终产物是氧化钛。作者还分析了所得聚合物的特性。二氧化钛的平均粒径采用微量分析仪HoribaLB-550测定,为45 nm。研究了反应时间和硬化剂含量对聚二甲基硅氧烷性能的影响。确定了最佳合成条件。在Unico-2800光谱仪上用紫外可见光谱研究了聚合物的光学性质。研究发现,使用正钛酸醚在光谱的短波区,从400 nm开始,有很强的吸收作用。根据正钛酸异丙醚的含量和固化时间,测定邵氏硬度。研究了该组合物在玻璃和钢基体上的粘附性能。撕裂强度达到2.2 MPa。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The process of oligodimethylsiloxane with terminal hydroxyl groups and isopropyl ether of orthotitanic acid interaction
The process of oligodimethylsiloxane with terminal hydroxyl groups and isopropyl ether of orthotitanic acid interaction was studied. This process leads to the formation of dimethylsiloxane elastomer, which is a valuable product in the production of sealing materials, high-temperature protective coatings, the starting product for heat-conducting pastes. The synthesis was carried out at a temperature of 25 оС due to the interaction of the terminal hydroxyl groups of the oligomer and the isopropoxy groups of the orthotitanic acid ester. The reaction was accompanied by the release of isopropyl alcohol, which was effectively removed from the reaction zone due to its high volatility. Along with the polycondensation reaction, an additional hydrolysis reaction of unreacted orthotitanic acid ether in the presence of atmospheric moisture is possible. The final product of the reaction was titanium oxide. The authors also analyzed the characteristics of the resulting polymer. The average particle size of titanium dioxide was determined using a microanalyzer HoribaLB-550, it was 45 nm. The effect of reaction time and hardener content on the properties of polydimethylsiloxane was studied. The optimal conditions for the synthesis were established. The optical properties of the polymer were studied using UV-VIS spectroscopy on the Unico-2800 spectrometer. It was found that the use of orthotitanic acid ether leads to a strong absorbing effect in the shortwave region of the spectrum, starting from 400 nm. Depending on the content of orthotitanic acid isopropyl ether and curing time, Shore A hardness was determined. The adhesive properties of the composition on a glass and steel substrate were studied. Tear strength reached 2.2 MPa.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信