ICCAS OpenIR
Synthesis and properties of novel regioirregular polyimides from easily synthesized asymmetrical dichlorophthalimide monomers
Li, Wenmu; Chen, Guang; Zhang, Suobo; Wang, He; Yan, Donghang
2007-08-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume45Issue:16Pages:3550-3561
AbstractNew 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.
KeywordDielectric Properties Fluoropolymers Gas Permeation Polyimides
DOI10.1002/pola.22102
Indexed BySCI
Language英语
WOS IDWOS:000248354900007
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/62592
Collection中国科学院化学研究所
Corresponding AuthorZhang, Suobo
Affiliation1.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
Recommended Citation
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.
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