In continuation of an effort to develop processable high-performance structural resins for use in aerospace applications, a new polyimide. LARCTM-CPI 2, has been developed. This semicrystalline polyimide was prepared by the reaction of 4.4'-oxydiphthalic anhydride with 1,4-bis(4-aminophenoxy-4'-benzoyl)benzene. In high-molecular-weight form this material has a glass transition temperature of 223 C and a crystalline melt temperature of approximately 350 'C. Controlled-molecular-weight end-capped versions of LARCTM-CPI 2 were used to fabricate adhesive panels and composites that exhibited good mechanical properties at temperatures as high as 200 C.
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References
1.
[1] Hergenrother P M, Wakelyn N T and Havens S J1987J. Polym. Sei.: Part A. Polym,. Chem.251093-1093
2.
[2] Hcrgenrother P M and Havens S J 1989 US Patent 4,820,791 NASA
3.
[3] Hergenrother P M and Havens S J1988SAMPE J.2413-13
4.
[4] Hergenrother P M and Havens S J 1989 US Patent 4,820,791 NASA
5.
[5] Hergenrother P M and Havens S J1988SAMPE J.24(4) 13-13
6.
[6] Johnston N J, Toweli T W and Hergenrother P M1991Thermoplastic Composite Materials ed L A Carlson (Amsterdam: Elsevier) ch 2, p 27-27
