Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride
文献类型：期刊论文
| 作者 | Fang, XZ; Li, QX; Wang, Z; Yang, ZH; Gao, LX; Ding, MX |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2004-05-01 |
| 卷号 | 42期号:9页码:2130-2144 |
| 关键词 | Cyclic Oligomers Polyimides Model Compounds Isomer Effects On Polyimide Properties Structure-property Relations Rheology 2 2 ' 3 3 '-benzophenonetetracarboxylic Dianhydride (2 2 ' 3 3 '-btda) |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.20069 |
| 英文摘要 | A new synthetic route to 2,2',3,3'-BTDA (where BTDA is benzophenonetetracarboxylic dianhydride), an isomer of 2,3',3',4'-BTDA and 3,3',4,4'-BTDA, is described. Single-crystal X-ray diffraction analysis of 2,2',3,3'-BTDA has shown that this dianhydride has a bent and noncoplanar structure. The polymerizations of 2,2',3,3'-BTDA with 4,4'-oxydianiline (ODA) and 4,4'-bis(4-aminophenoxy)benzene (TPEQ) have been investigated with a conventional two-step process. A trend of cyclic oligomers forming in the reaction of 2,2',3,3'-BTDA and ODA has been found and characterized with IR, NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and elemental analyses. Films based on 2,2',3,3'-BTDA/TPEQ can only be obtained from corresponding polyimide (PI) solutions prepared by chemical imidization because those from their polyamic acids by thermal imidization are brittle. PIS from 2,2',3,3'-BTDA have lower inherent viscosities and worse thermal and mechanical properties than the corresponding 2,3',3',4'-BTDA- and 3,3',4,4'-BTDA-based PIs. PIs from 2,2',3,3'-BTDA and 2,3',3',4'-BTDA are amorphous, whereas those from 3,3',4,4'-BTDA have some crystallinity, according to wide-angle X-ray diffraction. Furthermore, PIS from 2,2',3,3'-BTDA have better solubility, higher glass-transition temperatures, and higher melt viscosity than those from 2,3',3',4'-BTDA and 3,3',4,4'-BTDA. Model compounds have been prepared to explain the order of the glass-transition temperatures found in the isomeric PI series. The isomer effects on the PI properties are discussed. (C) 2004 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000220851800010 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/82049]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ding, MX |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, XZ,Li, QX,Wang, Z,et al. Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2004,42(9):2130-2144. |
| APA | Fang, XZ,Li, QX,Wang, Z,Yang, ZH,Gao, LX,&Ding, MX.(2004).Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,42(9),2130-2144. |
| MLA | Fang, XZ,et al."Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 42.9(2004):2130-2144. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。