SYNTHSIS OF HIGHLY ISOTACTIC POLYACRYLONITRILE
文献类型：期刊论文
| 作者 | Bai, Yun-gang; Zhang, Gui-bao; Li, Bai-xiang; Li, Yue-sheng |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2012-03-20 |
| 期号 | 3页码:231-238 |
| 关键词 | Anhydrous Magnesium Chloride Polyacrylonitrile Isotacticity Thermal Analysis |
| ISSN号 | 1000-3304 |
| DOI | 10.3724/SP.J.1105.2012.11150 |
| 英文摘要 | Acrylonitrile (AN) homopolymerization and the copolymerization were examined under various conditions in the presence of anhydrous magnesium chloride (MgCl2). The polymers were obtained with high isotacticity. The effect of solvents, reaction temperature, the molar ratio of MgCl2 and AN on AN homopolymerization and the copolymerization and the tacticity of the polymers were investigated. The optimum reactive conditions to obtain the polymers with high isotacticity are as follows: hexane as the solvent, 2,2'-azobisisobutyronitrile (AIBN) as the initiator, the temperature of 60 degrees C and the molar ratio (MgCl2/AN) of 2: 1. The effects of monomer concentration and initiator concentration on the AN homopolymerization, AN/IA (itaconic acid) copolymerization, AN/IA/MA (methylacrylate) copolymerization were investigated. The homopolymers and copolymers with highly triad isotactic content (30.2% similar to 55.9%) have been obtained. The polymers were characterized by C-13-NMR and Fourier transform infrared (FTIR) spectra. At the same time, the thermal properties of the polymers were characterized by differential scanning calorimetry (DSC) and thermogravimetry analysis (TGA). The DSC results show that the exothermic peak temperature of the copolymers increases with the degree of isotacticity, as well as the exothermic peaks of copolymers become wider. The TGA results reveal the copolymer with high isotacticity shows rapid weight loss when the temperature is higher than approximately 300 degrees C, the char-yields and thermal stability of the copolymers are decreased with the increasing of the degree of isotacticity. |
| 语种 | 英语 |
| WOS记录号 | WOS:000301871300001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/48387]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Bai, Yun-gang |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Yun-gang,Zhang, Gui-bao,Li, Bai-xiang,et al. SYNTHSIS OF HIGHLY ISOTACTIC POLYACRYLONITRILE[J]. ACTA POLYMERICA SINICA,2012(3):231-238. |
| APA | Bai, Yun-gang,Zhang, Gui-bao,Li, Bai-xiang,&Li, Yue-sheng.(2012).SYNTHSIS OF HIGHLY ISOTACTIC POLYACRYLONITRILE.ACTA POLYMERICA SINICA(3),231-238. |
| MLA | Bai, Yun-gang,et al."SYNTHSIS OF HIGHLY ISOTACTIC POLYACRYLONITRILE".ACTA POLYMERICA SINICA .3(2012):231-238. |
入库方式： OAI收割
来源：化学研究所
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