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Preparation and Properties of Optical Transparent Polyimides Containing Aliphatic Ring and Amide Structure
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Tingting ZHANG1, Zhenghui YANG2, Fengyu PIAO1, Haiquan GUO2
Insulating Materials | 2021, 54(11) : 62 - 68
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Insulating Materials | 2021, 54(11): 62-68
Polyimide Film Special Issue
Preparation and Properties of Optical Transparent Polyimides Containing Aliphatic Ring and Amide Structure
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Tingting ZHANG1, Zhenghui YANG2, Fengyu PIAO1, Haiquan GUO2
Affiliations
  • 1College of Science, Yanbian University, Yanji 133000, China
  • 2Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130021, China
Published: 2021-11-22 doi: 10.16790/j.cnki.1009-9239.im.2021.11.008
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A novel dianhydride monomer containing alicyclic ring and amide group was synthesized and further polymerized with several diamine monomers to prepare a series of transparent polyimide films. The properties of the films were tested and characterized. The results show that the synthesized polyimide films have excellent optical properties (T550>89%), low coefficient of thermal expansion (CTE<17×10-6 K-1), and higher glass transition temperature (Tg>320℃) because of introducing trans cyclohexane and amide into the structure of dianhydride at the same time. The introduction of alicyclic structure decreases the formation of charge transfer complex, which increases the transparency of the polyimide films. On the other hand, the introduction of amide structure decreases the coefficient of thermal expansion.

transparent polyimide  /  alicyclic dianhydrid  /  amide dianhydride  /  low coefficient of thermal expansion
Tingting ZHANG, Zhenghui YANG, Fengyu PIAO, Haiquan GUO. Preparation and Properties of Optical Transparent Polyimides Containing Aliphatic Ring and Amide Structure[J]. Insulating Materials, 2021 , 54 (11) : 62 -68 . DOI: 10.16790/j.cnki.1009-9239.im.2021.11.008
Year 2021 volume 54 Issue 11
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.11.008
  • Receive Date:2021-05-05
  • Online Date:2026-03-23
  • Published:2021-11-22
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  • Received:2021-05-05
  • Revised:2021-05-26
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    1College of Science, Yanbian University, Yanji 133000, China
    2Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130021, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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