化学化工学院机构知识库

Institutional Repository, College of Chemistry and Chemical Engineering

 

兰州大学机构库  > 化学化工学院  > 期刊论文
题名: Synthesis and properties of novel soluble and high T-g poly(ether imide)s from diamine containing 4,5-diazafluorene and trifluoromethyl units
作者: Li, H; Zhang, SJ; Gong, CL(宫琛亮); Liang, Y; Qi, ZG; Li, YF(李彦锋)
收录类别: SCIE ; EI
出版日期: 2015-03
刊名: POLYMER INTERNATIONAL
卷号: 64, 期号:3, 页码:352-360
英文摘要: The synthesis and properties of soluble, high T-g and transparent aromatic polyimides containing 4,5-diazafluorene and trifluoromethyl units in the polymer backbone on the basis of a novel diamine monomer, 9,9-di[4-(4-amino-2-trifluoromethyl phenoxy)phenylene]-4,5-diazafluorene, are described. Incorporation of 4,5-diazafluorene and trifluoromethyl groups into rigid polyimides improves their solubility and transparency without decreasing their physical properties. All of the thermal imidization polyimides are soluble at room temperature in aprotic and protic polar solvents such as N,N-dimethylacetamide, N,N-dimethylformamide, dimethylsulfoxide, pyridine and m-cresol and can be solution cast into transparent, flexible and tough films. These films have a UV-visible absorption cutoff wavelength at 386-407nm and light transparencies of 73%-84% at a wavelength of 550nm. In addition, the polymers exhibit high thermal stability with a glass transition temperature (T-g) of 305 to 362 degrees C and 5% weight loss at temperatures ranging from 525 to 543 degrees C in nitrogen and from 521 to 538 degrees C in air. The polyimide films possess tensile strengths in the range 79-113MPa, a tensile modulus of 1.75-2.10GPa and elongations at break of 7%-16%. (c) 2014 Society of Chemical Industry
关键词: polyimide ; cardo structure ; 4 ; 5-diazafluorene unit ; optical properties ; thermal properties
作者部门: [Li, Hui ; Zhang, Shujiang ; Gong, Chenliang ; Liang, Yu ; Qi, Zhigang ; Li, Yanfeng] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
通讯作者: Li, YF (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China.
学科分类: Polymer Science
文章类型: Article
所属项目编号: National Natural Science Foundation of China [21204033] ; Natural Science Foundation of Gansu Province [1208RJYA016] ; National Training Fund for Talented Persons of Basic Subjects [J1103307] ; Opening Foundation of State Key Laboratory of Applied Organic Chemistry [SKLAOC-2009-35] ; Fundamental Research Funds for the Central Universities [2022012zr0023]
所属项目名称: 国家自然科学基金项目 ; 国家基础科学人才培养基金项目 ; 中央高校基本科研业务费专项资金 ; 甘肃省青年科技基金计划
项目资助者: NSFC ; LZU ; GSSTD
语种: 英语
DOI: 10.1002/pi.4791
ISSN号: 0959-8103
WOS记录号: WOS:000349401200005
EI记录号: 20144700222822
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/126412
Appears in Collections:化学化工学院_期刊论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Li, H,Zhang, SJ,Gong, CL,et al. Synthesis and properties of novel soluble and high T-g poly(ether imide)s from diamine containing 4,5-diazafluorene and trifluoromethyl units[J]. POLYMER INTERNATIONAL,2015,64(3):352-360.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Altmetrics Score
 
Google Scholar
Similar articles in Google Scholar
[Li, H]'s Articles
[Zhang, SJ]'s Articles
[Gong, CL]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Li, H]‘s Articles
[Zhang, SJ]‘s Articles
[Gong, CL]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Email:
Passwd
验 证:
换一张
Have you forgotten your password? Log In
Copyright © 2007-2017  兰州大学 - Feedback
Powered by CSpace