Synthesis and properties of novel regioirregular polyimides from easily synthesized asymmetrical dichlorophthalimide monomers
文献类型：期刊论文
| 作者 | Li WM ; Chen G ; Zhang SB ; Wang H ; Yan DH |
| 刊名 | journal of polymer science part a-polymer chemistry
 |
| 出版日期 | 2007 |
| 卷号 | 45期号:16页码:3550-3561 |
| 关键词 | COLORED FLUORINATED POLYIMIDES AROMATIC DIANHYDRIDES RIGID-ROD SOLUBLE POLYIMIDES ORGANOSOLUBLE POLYIMIDES UNSYMMETRICAL DIAMINE FILMS 2 BIS(CHLOROPHTHALIMIDE)S PERMEABILITY 2'-BIS(TRIFLUOROMETHYL)-4 4'-DIAMINOBIPHENYL |
| ISSN号 | 0887-624x |
| 通讯作者 | zhang sb |
| 中文摘要 | new asymmetrical aromatic dichlorophthalimide monomers containing pendant groups (trifluoromethyl or methyl) were conveniently prepared from inexpensive and commercially available compounds. with these monomers, a new class of soluble polyimides with a regioirregular structure within the polymer backbone was obtained by the ni(0)-catalyzed polymerization method. the structures of the polymers were confirmed by various spectroscopic techniques. the polyimides displayed better solubility and higher thermal stability than the corresponding regular polyimides. in addition, fluorinated polyimides in this study had low dielectric constants ranging from 2.52 to 2.78, low moisture absorptions of less than 0.59%, and low thermal expansion coefficients between 10.6 and 19.7 ppm/degrees c. the oxygen permeability coefficients and permeability selectivity of oxygen to nitrogen of the films were in the ranges of 2.99-4.20 barrer and 5.55-7.50, respectively. we have demonstrated that the synthetic pathway for polyimides provides a successful approach to increasing the solubility and processability of polyimides without sacrificing their thermal stability. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000248354900007 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/13773]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li WM,Chen G,Zhang SB,et al. Synthesis and properties of novel regioirregular polyimides from easily synthesized asymmetrical dichlorophthalimide monomers[J]. journal of polymer science part a-polymer chemistry,2007,45(16):3550-3561. |
| APA | Li WM,Chen G,Zhang SB,Wang H,&Yan DH.(2007).Synthesis and properties of novel regioirregular polyimides from easily synthesized asymmetrical dichlorophthalimide monomers.journal of polymer science part a-polymer chemistry,45(16),3550-3561. |
| MLA | Li WM,et al."Synthesis and properties of novel regioirregular polyimides from easily synthesized asymmetrical dichlorophthalimide monomers".journal of polymer science part a-polymer chemistry 45.16(2007):3550-3561. |
入库方式： OAI收割
来源：长春应用化学研究所
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