Thermal degradation of polymers. Part XX. The effect of thermal ageing on thermal diffusivity and hardness of polyquinazolones | Zendy

Chan H. S. O. | Zendy; Still R. H. | Zendy

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Thermal degradation of polymers. Part XX. The effect of thermal ageing on thermal diffusivity and hardness of polyquinazolones

Author(s) -

Chan H. S. O.,

Still R. H.

Publication year - 1978

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1978.070220812

Subject(s) - thermal diffusivity , degradation (telecommunications) , materials science , polymer , composite material , ageing , thermal , tribology , polymer chemistry , thermodynamics , telecommunications , physics , genetics , biology , computer science

Pre‐polymers prepared from 4,4′‐diaminodiphenyl‐3,3′‐dicarboxylic acid and aromatic diacetamido compounds have been cyclized under optimized conditions. The thermal diffusivity and hardness of these materials have been evaluated. The effect of thermal ageing on these parameters and weight loss has also been investigated. Changes in these parameters have been related to the possible structural changes occurring within these systems. These changes are discussed in terms of the potential use of these materials in tribological applications.

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