Synthesis and gas transport property of polyimide from 2,2 '-disubstituted biphenyltetracarboxylic dianhydrides (bpda)
文献类型：期刊论文
| 作者 | Qiu, Zhiming; Chen, Guang; Zhang, Quanyuan; Zhang, Suobo |
| 刊名 | European polymer journal
 |
| 出版日期 | 2007 |
| 卷号 | 43期号:1页码:194-204 |
| 关键词 | Polyimides Gas separation Solubility Permeability |
| ISSN号 | 0014-3057 |
| DOI | 10.1016/j.eurpolymj.2006.09.009 |
| 通讯作者 | Zhang, suobo(sbzhang@ciac.jl.cn) |
| 英文摘要 | A series of dianhydride monomers, 2,2'-disubstituted-4,4',5,5'-biphenyltetracarboxylic dianhydride (substituents = phenoxy, p-methylphenoxy, p-tert-butylphenoxy, nitro, and methoxy) were synthesized by the nitration of an n-methyl protected 3,3',4,4'-biphenyttetracarboxylic dianhydride (bpda) and subsequent aromatic nucleophilic substitutions with aroxides (naoar) or methoxide. these dianhydrides were polymerized with various aromatic diamines in refluxing m-cresol containing isoquinoline to afford a series of aromatic polyintides. the effects of varying 2,2'-substituents of the dianhydride (bpda) moiety on the properties of polyimides were investigated. it was found that polyimides from the dianhydrides containing phenoxy, p-methylphenoxy, and p-tert-butylphenoxy side groups possessed excellent solubility and film forming capability whereas polyimides from 2,2'-dinitro-bpda and 2,2'-dimethoxy-bpda were less soluble in organic solvent. the soluble polymers formed flexible, tough and transparent films. the films had a tensile strength, elongation at break, and young's modulus in the ranges 102-168 mpa, 8-21%, 2.02-2.38 gpa, respectively. the polymer gas permeability coefficients (p) and ideal selectivities for n-2, o-2, co2 and ch4 were determined for the -oar substituted polyimides. the oxygen permeability coefficient (p-o2) and permselectivity of oxygen to nitrogen (po2/n-2) of the films were in the ranges 3.4-11.3 barrer and 3.8-4.6, respectively. the gas permeability typically increased with increasing free volume in the order of tert-butylphenoxy substituted pi > methylphenoxy substituted pi > phenoxy substituted pi. (c) 2006 elsevier ltd. all rights reserved. |
| WOS关键词 | ORGANO-SOLUBLE POLYIMIDES ; AROMATIC POLYIMIDES ; DIAMINE ; POLYMERIZATION ; PERMEABILITY ; POLYAMIDES ; BEARING ; UNIT |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000244019900022 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380858 |
| 专题 | 中国科学院大学 |
| 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 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Zhiming,Chen, Guang,Zhang, Quanyuan,et al. Synthesis and gas transport property of polyimide from 2,2 '-disubstituted biphenyltetracarboxylic dianhydrides (bpda)[J]. European polymer journal,2007,43(1):194-204. |
| APA | Qiu, Zhiming,Chen, Guang,Zhang, Quanyuan,&Zhang, Suobo.(2007).Synthesis and gas transport property of polyimide from 2,2 '-disubstituted biphenyltetracarboxylic dianhydrides (bpda).European polymer journal,43(1),194-204. |
| MLA | Qiu, Zhiming,et al."Synthesis and gas transport property of polyimide from 2,2 '-disubstituted biphenyltetracarboxylic dianhydrides (bpda)".European polymer journal 43.1(2007):194-204. |
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来源：中国科学院大学
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