Novel high temperature polypyrrolones with asymmetric biphenyl moieties in the main chain: Synthesis and characterization
文献类型：期刊论文
| 作者 | Liu, Jin-Gang; Zhao, Xiao-Juan; Yang, Hai-Xia; Li, Hong-Shen; Fan, Lin; Yang, Shi-Yong |
| 刊名 | MACROMOLECULAR CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2006-07-24 |
| 卷号 | 207期号:14页码:1272-1277 |
| 关键词 | Asymmetry Films Polypyrrolone Thermal Properties 2 3 3 ' 4 '-bpda |
| ISSN号 | 1022-1352 |
| DOI | 10.1002/macp.200600132 |
| 英文摘要 | Two novel polypyrrolones (PPys) with asymmetric biphenyl moieties in the main chains have been synthesized from 2,3,3',4'-biphenyl tetracarboxylic dianhydride (a-BPDA) and two aromatic tetra-amines: 3,3,4,4'-tetra-amino biphenyl (TABP) and 3,3',4,4'-tetra-amino diphenyl ether (TADPE) respectively, via soluble poly(amide amino acid) (PAAA) precursors, followed by thermal cyclization at elevated temperatures. The polymerization and curing conditions were studied and confirmed. Asymmetric biphenyl structures endowed the polymers with good combined properties. For example, flexible and tough PPy films with acceptable mechanical properties were obtained. Tensile strengths of higher than 70 MPa and elongations at break of higher than 6% were achieved. The PPy films with a final curing temperature of 350 degrees C exhibited good thermal stability and the 10% weight loss temperatures were 610.3 degrees C for PPy-I, and 607.8 degrees C for PPy-II. The residual weight ratios at 700 degrees C were higher than 80%. In addition, the PPy films showed good dielectric properties with dielectric breakdown strengths of higher than 100 V . mu m(-1) and dielectric constants of 3.64 for PPy-I and 3.53 for PPy-II. |
| 语种 | 英语 |
| WOS记录号 | WOS:000239697400008 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/59205]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Jin-Gang |
| 作者单位 | Chinese Acad Sci, Inst Chem, Lab Adv Polymer Mat, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jin-Gang,Zhao, Xiao-Juan,Yang, Hai-Xia,et al. Novel high temperature polypyrrolones with asymmetric biphenyl moieties in the main chain: Synthesis and characterization[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2006,207(14):1272-1277. |
| APA | Liu, Jin-Gang,Zhao, Xiao-Juan,Yang, Hai-Xia,Li, Hong-Shen,Fan, Lin,&Yang, Shi-Yong.(2006).Novel high temperature polypyrrolones with asymmetric biphenyl moieties in the main chain: Synthesis and characterization.MACROMOLECULAR CHEMISTRY AND PHYSICS,207(14),1272-1277. |
| MLA | Liu, Jin-Gang,et al."Novel high temperature polypyrrolones with asymmetric biphenyl moieties in the main chain: Synthesis and characterization".MACROMOLECULAR CHEMISTRY AND PHYSICS 207.14(2006):1272-1277. |
入库方式： OAI收割
来源：化学研究所
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