Synthesis and properties of novel regioirregular polyimides from easily synthesized asymmetrical dichlorophthalimide monomers
文献类型：期刊论文
| 作者 | Li, Wenmu; Chen, Guang; Zhang, Suobo; Wang, He; Yan, Donghang |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2007-08-15 |
| 卷号 | 45期号:16页码:3550-3561 |
| 关键词 | Dielectric Properties Fluoropolymers Gas Permeation Polyimides |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.22102 |
| 英文摘要 | 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. (C) 2007 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000248354900007 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/62591]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Suobo |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Wenmu,Chen, Guang,Zhang, Suobo,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, Wenmu,Chen, Guang,Zhang, Suobo,Wang, He,&Yan, Donghang.(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, Wenmu,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：化学研究所
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