Synthesis of crosslinkable fluorinated linear-hyperbranched copolyimides for optical waveguide devices

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	Synthesis of crosslinkable fluorinated linear-hyperbranched copolyimides for optical waveguide devices
	Y. Liu; H. Y. Yao; Y. H. Zhang; H. B. Zhang; J. X. Mu; Z. H. Jiang; S. W. Guan
	2013
发表期刊	Journal of Applied Polymer Science
ISSN	0021-8995
卷号	127 期号:3 页码:1834-1841
摘要	A series of novel crosslinkable fluorinated linear-hyperbranched copolyimides (co-FHBPIs) were prepared by condensation of 1,3,5-tris(2-trifluoromethy-4-aminopheoxy) benzene (TFAPOB), 1,4-bis(4-amino-2-trifluoromethylphenoxy) benzene (6FAPB), and 4,4'-(2-(3',5'-ditrifluoromethylphenyl)-1,4-phenylenedioxy)-diphthalic anhydride (6FPDA) with different feed ratio, which followed by reaction with 3-ethynylaniline. Under this circumstance, as the TFAPOB/6FAPB ratio increases, the T-g of the polymers decreases gradually from 218 to 199 degrees C, and the Young's moduli decreases from 2.14 to 1.64 GPa. Although, the refractive indices are adjustable in the ranges of 1.5755-1.5631, and the polymer birefringences decrease from 0.0122 to 0.0012 at wave length 650 nm. The polymer films were fabricated by spin-coating and crosslinked by thermal curing. The cured films have good resistance to common organic solvents such as acetone, tetrahydrofuran, N, N-dimethylformamide, dimethyl sulfoxide, and chloroform. The glass transition temperature of E-coFHBPI 50 (the TFAPOB/(6FAPB+ TFAPOB) ratio is 50%)changes from 200 to 243 degrees C after curing, which shows higher thermal stability up to 582 degrees C (5% weight loss). Rib-type optical waveguide device is fabricated by E-coFHBPI 50, which demonstrates an obvious near-field mode pattern of the waveguide. All the results indicated that the polymers are promising candidates for optical waveguide materials. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 127: 1834-1841, 2013
部门归属	[liu, yu ; yao, hongyan ; zhang, yunhe ; zhang, haibo ; mu, jianxin ; jiang, zhenhua ; guan, shaowei] jilin univ, coll chem, alan g macdiarmid lab, changchun 130012, peoples r china. [liu, yu] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; guan, sw (reprint author), jilin univ, coll chem, alan g macdiarmid lab, qianjin st 2699, changchun 130012, peoples r china. ; yaohongyan85@126.com
关键词	Crosslinking Hyperbranched Polyimides Polyimides Components Membranes Ketone)s
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71384
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Liu,H. Y. Yao,Y. H. Zhang,et al. Synthesis of crosslinkable fluorinated linear-hyperbranched copolyimides for optical waveguide devices[J]. Journal of Applied Polymer Science,2013,127(3):1834-1841.
APA	Y. Liu.,H. Y. Yao.,Y. H. Zhang.,H. B. Zhang.,J. X. Mu.,...&S. W. Guan.(2013).Synthesis of crosslinkable fluorinated linear-hyperbranched copolyimides for optical waveguide devices.Journal of Applied Polymer Science,127(3),1834-1841.
MLA	Y. Liu,et al."Synthesis of crosslinkable fluorinated linear-hyperbranched copolyimides for optical waveguide devices".Journal of Applied Polymer Science 127.3(2013):1834-1841.