Backbiting-minimized synthesis of fluorosilicone copolymers with promoter by anionic ring-opening polymerization
文献类型：期刊论文
| 作者 | Lee, Chung Soo1,2; Oh, Su Min2; Kang, Hye In2; Seo, Jin Sung2; Park, Kyoung Tae2; Baeck, Sung Hyeon2; Shim, Sang Eun1,2; Qian, Yingjie1,2 |
| 刊名 | POLYMER
 |
| 出版日期 | 2024-08-20 |
| 卷号 | 308页码:8 |
| 关键词 | Back-biting Promoter Mechanism of polymerization Fluorosilicone copolymers Polysiloxane |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2024.127417 |
| 通讯作者 | Shim, Sang Eun(seshim@inha.ac.kr) ; Qian, Yingjie(qianyj@ms.giec.ac.cn) |
| 英文摘要 | A back-biting reaction in fluorosilicone synthesis can compromise its precision-manufactured mechanical properties and deteriorate its molecular properties. This phenomenon can potentially disrupt the intricate structure of fluorosilicone, diminishing its durability and altering its properties over time. Cyclosiloxane with methyl and vinyl groups was added to overcome the limited properties of poly[methyl(trifluoropropyl)siloxane] and conventional rubber for harnessing versatile materials, such as vehicles and spacecraft. In this study, dimethyl carbonate, diethyl carbonate, and allyl methyl carbonate were used as promoters to suppress backbiting reactions, and an improved fluoro-vinyl-methyl silicone (FVMQ) was synthesized. 29Si nuclear magnetic resonance (NMR) spectroscopy showed that the cyclic by-products from the back-biting reaction were inhibited by adding carbonate materials. Moreover, the conversion of 1,3,5-trimethyl-1,3,5-tris(3,3,3-trifluoropropyl) cyclotrisiloxane also increased as the amount of promoter increased. The roles of varying carbonate promoters in altering the properties of FVMQs were studied using 1H NMR spectroscopy, thermogravimetric analysis, and differential scanning calorimetry. Furthermore, the intermediate of FVMQs was prepared and analyzed using Fourier transform infrared spectroscopy, 1H NMR spectroscopy, and gel permeation chromatography to determine the mechanism of suppressing back-biting. The results showed that controlled synthesis of FVMQs by inhibiting the production of cyclic by-products with promoters will improve silicone polymer synthesis and the vehicle industry requiring high yields of fluorosilicone copolymers. |
| WOS关键词 | TERMINATED COPOLYSILOXANES ; SILICONE ; STEREOREGULARITY ; SIMULATIONS ; RUBBER |
| 资助项目 | Technology Innovation Program[20009983] ; Technology Innovation Program[20010559] ; Technology Innovation Program[20010265] ; Ministry of Trade, Industry & Energy (MOTIE, South Korea) |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001275378900001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Technology Innovation Program ; Ministry of Trade, Industry & Energy (MOTIE, South Korea) |
| 源URL | [http://ir.giec.ac.cn/handle/344007/42410]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Shim, Sang Eun; Qian, Yingjie |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, NengYuan St 2, Guangzhou 510640, Peoples R China 2.Inha Univ, Educ & Res Ctr Smart Energy & Mat, Dept Chem & Chem Engn, Incheon 22212, South Korea |
| 推荐引用方式 GB/T 7714 | Lee, Chung Soo,Oh, Su Min,Kang, Hye In,et al. Backbiting-minimized synthesis of fluorosilicone copolymers with promoter by anionic ring-opening polymerization[J]. POLYMER,2024,308:8. |
| APA | Lee, Chung Soo.,Oh, Su Min.,Kang, Hye In.,Seo, Jin Sung.,Park, Kyoung Tae.,...&Qian, Yingjie.(2024).Backbiting-minimized synthesis of fluorosilicone copolymers with promoter by anionic ring-opening polymerization.POLYMER,308,8. |
| MLA | Lee, Chung Soo,et al."Backbiting-minimized synthesis of fluorosilicone copolymers with promoter by anionic ring-opening polymerization".POLYMER 308(2024):8. |
入库方式： OAI收割
来源：广州能源研究所
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