CHARACTERIZATION AND THERMAL STABILITY OF PMR POLYIMIDES USING 7-OXA-BICYCLO[2,2,1]HEPT-5-ENE-2, 3-DICARBOXYLIC ANHYDRIDE AS END CAPS

Chen-liang Gong; Yan-feng Li; Hai-xia Yang; Xiao-long Wang; Shu-jiang Zhang; Shi-yong Yang

doi:10.1007/s10118-011-1089-8

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CHARACTERIZATION AND THERMAL STABILITY OF PMR POLYIMIDES USING 7-OXA-BICYCLO[2,2,1]HEPT-5-ENE-2, 3-DICARBOXYLIC ANHYDRIDE AS END CAPS

Updated：2021-06-21

- CHARACTERIZATION AND THERMAL STABILITY OF PMR POLYIMIDES USING 7-OXA-BICYCLO[2,2,1]HEPT-5-ENE-2, 3-DICARBOXYLIC ANHYDRIDE AS END CAPS
- Chinese Journal of Polymer Science Vol. 29, Issue 6, Pages: 741-749(2011)
- Affiliations：
  
  a.State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China;
  b.The Laboratory of Advanced Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Author bio：
  
  **Yan-feng Li (李彦锋), E-mail: liyf@lzu.edu.cn
- Funds：
- DOI：10.1007/s10118-011-1089-8
  CLC：
- Received：30 December 2010，
  
  Revised：2011-02-28，
  
  Accepted：03 March 2011，
  
  Published：2011
- Accepted：
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Chen-liang Gong, Yan-feng Li, Hai-xia Yang, et al. CHARACTERIZATION AND THERMAL STABILITY OF PMR POLYIMIDES USING 7-OXA-BICYCLO[2,2,1]HEPT-5-ENE-2, 3-DICARBOXYLIC ANHYDRIDE AS END CAPS[J]. Chinese Journal of Polymer Science, 2011, 29(6): 741-749.
DOI：

Chen-liang Gong, Yan-feng Li, Hai-xia Yang, et al. CHARACTERIZATION AND THERMAL STABILITY OF PMR POLYIMIDES USING 7-OXA-BICYCLO[2,2,1]HEPT-5-ENE-2, 3-DICARBOXYLIC ANHYDRIDE AS END CAPS[J]. Chinese Journal of Polymer Science, 2011, 29(6): 741-749. DOI： 10.1007/s10118-011-1089-8.

摘要

Abstract

An anhydride monomer containing ether oxide bridge

7-oxa-bicyclo[2

1]hept-5-ene-2

3-dicarboxylic anhydride (ONA)

was successfully synthesized by Diels-Alder reaction of furan and maleic anhydride. The ONA was also studied as an end-cap for the polymerization of monomer reactant (PMR) type polyimides. Three molecular weight levels of the ONA end-capped PMR resins were evaluated. The effects of process conditions of these novel PMR resins on thermal and mechanical properties were investigated. It was demonstrated that the imidized prepolymers using the end-cap have good processability

and the cured polyimide specimens exhibited good thermal stability. The initial decomposition temperature

(

. 580℃) and glass transition temperature

(330℃) of the novel resin (PI-20)

prepared under optimum process conditions

compare favorably with the

(

. 620℃) and

(

. 348℃) of the state-of-the-art resin (PI'-20)

respectively.

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