New autophotosensitive semiaromatic hyperbranched polyimides with excellent thermal stabilities and low birefringences-Reference-Cited by-同舟云学术

New autophotosensitive semiaromatic hyperbranched polyimides with excellent thermal stabilities and low birefringences

Published:2012-10-29 Issue:3 Volume:25 Page:301-311
ISSN:0954-0083
Container-title:High Performance Polymers
language:en
Short-container-title:High Performance Polymers

Author:

Liu Changwei¹,Zhao Xiaogang¹,Li Yan¹,Yang Dong¹,Wang Lina¹,Jin Lin²,Chen Chunhai¹,Zhou Hongwei¹

Affiliation:

1. Alan G. MacDiarmid Institute, Jilin University, Changchun, China

2. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China

Abstract

A series of autophotosensitive semiaromatic hyperbranched polyimides were prepared by (A2 + B3)-type method and endcapped with 3-aminophenylacetylene. The photosensitive-hyperbranched polyimides (PHBPIs) showed excellent solubility, excellent optical properties, and low birefringences in the range of 0.0010–0.0027, caused by their special hyperbranched structures and alicyclic chain segments reduced both intramolecular and intermolecular charge transfer complex effect. The cured films also showed high glass transition temperatures between 204°C and 220°C, excellent thermal stabilities with 10% thermal decomposing temperatures in the range of 476–495°C, and good mechanical properties. The PHBPIs had photosensitivities ( Dg) in the range of 80–162 mJ/cm2 and showed a clear negative image with a line width of 8 µm when exposed to an ultraviolet light of 365 nm ( i-line).

Publisher

SAGE Publications

Subject

Materials Chemistry,Organic Chemistry,Polymers and Plastics

Link

http://journals.sagepub.com/doi/pdf/10.1177/0954008312463740

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