Accession Number : AD0669839

Title :   IONIC CLUSTERS IN HIGH STRENGTH CARBOXYLIC RUBBERS.

Descriptive Note : Technical rept.,

Corporate Author : PRINCETON UNIV N J FRICK CHEMICAL LAB

Personal Author(s) : Tobolsky,A. V. ; Lyons,P. F. ; Hata,N.

Report Date : MAY 1968

Pagination or Media Count : 26

Abstract : The viscoelastic effect of ionic linkages in carboxylic rubber is indicative of the presence of hard ionic clusters dispersed throughout an amorphous rubbery matrix. The viscoelastic response characteristics of the metallocarboxylate rubbers are similar to those observed with linear segmented elastomers -- an enhanced and extended 'rubbery plateau' region above a major glass transition temperature. The high strength of the carboxylic rubbers cured with metal oxides is ascribed to the presence of ionic clusters which give rise to a two-phase, reinforced structure. (Author)

Descriptors :   (*ELASTOMERS, *REINFORCING MATERIALS), BUTADIENES, ACRYLONITRILE POLYMERS, ACRYLIC RESINS, COPOLYMERIZATION, VISCOELASTICITY, IMPURITIES, IONS, CHEMICAL BONDS, VULCANIZATION, ZINC COMPOUNDS, OXIDES, CURING AGENTS

Subject Categories : Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE