| 含膦酰杂菲侧基聚乙炔的合成与热稳定性 |
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| 引用本文： | 申进波,佟斌,赵玮,潘月秀,冯霄,石建兵,支俊格,董宇平.含膦酰杂菲侧基聚乙炔的合成与热稳定性[J].高分子学报,2009,0(8):769-774. |
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| 作者姓名： | 申进波 佟斌 赵玮 潘月秀 冯霄 石建兵 支俊格 董宇平 |
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| 作者单位： | 1. 北京理工大学,材料科学与工程学院,北京,100081
2. 北京理工大学,理学院,北京,100081 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 以2-(6-氧化-6-氢-二苯基(c,e)<1,2>氧杂磷酰基)-1,4-二羟基苯(ODOPB)结构单元为中心,在两侧通过酯化反应分别引入4-乙炔基苯甲酰基和4-烷氧基苯甲酰基,并作为乙炔单体,在Rh(nbd)Cl]2催化下,30℃聚合得到了含磷酰杂菲(DOPO)基团的聚乙炔.1H-NMR和GPC分析表明,由于DOPO存在较大π共轭结构和较强极性效应,在诱导聚乙炔主链采取高反式构型的同时,增加了分子链内相邻侧基之间的相互作用,使整个分子链趋向二维共平面结构,有利于增强分子链之间的相互作用.TGA显示,与不含磷酰杂菲侧基的模型聚乙炔相比,DOPO的引入使聚乙炔呈现良好的热稳定性,起始热分解温度(T5%)接近400℃,说明通过增强分子链内侧基间相互作用有助于提高热稳定性.
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| 关 键 词： | 聚乙炔 Rh基催化剂 磷酰杂菲 热稳定性 |
| 收稿时间： | 2009-02-25 |
SYNTHESIS AND THERMAL STABILITY OF PHOSPHAPHENANTHRENE-CONTAINING POLYACETYLENES |
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| SHEN Jinbo,TONG Bin,ZHAO Wei,PAN Yuexiu,FENG Xiao,SHI Jianbing,ZHI Junge,DONG Yuping.SYNTHESIS AND THERMAL STABILITY OF PHOSPHAPHENANTHRENE-CONTAINING POLYACETYLENES[J].Acta Polymerica Sinica,2009,0(8):769-774. |
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| Authors: | SHEN Jinbo TONG Bin ZHAO Wei PAN Yuexiu FENG Xiao SHI Jianbing ZHI Junge DONG Yuping |
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| Institution: | College of Materials Science &; Engineering, Beijing Institute of Technology, Beijing 100081, College of Science, Beijing Institute of Technology, Beijing 100081 |
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| Abstract: | New thermal stable mono-substituted polyacetylenes (PAT5 and PAT10) containing phosphaphenanthrene as side groups and end-chains of different lengths were studied.4-Ethynylbenzoyl and 4-alkoxylbenzoyl were first introduced into the 2-(6-oxide-6H-dibenz<1,2>oxaphos-phorin-6-yl)-dihydroxyphenylene (ODOPB) through a two-step esterification,respectively,which synthesized the phosphaphenanthrene-containing acetylenic monomers.The polymerization of novel monomers was carried out by using Rh(nbd)Cl]2-NEt3 as... |
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| Keywords: | Polyacetylene Rh-based catalyst Phosphaphenanthrene Thermal stability |
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