A STUDY OF THE POLYMERIZATION OF THERMOSETTING POLYMERS BY ELECTRICAL RESISTIVITY TECHNIQUES

Warfield, R. W.; Petree, M. C.

A STUDY OF THE POLYMERIZATION OF THERMOSETTING POLYMERS BY ELECTRICAL RESISTIVITY TECHNIQUES

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Abstract:

Electrical volume resistivity measurements made isothermally during polymerization have been used to study the bulk polymerization of epoxide, polyester and polyurethane polymers. Whenever possible, kinetic parameters have been calculated. The over-all activation energy Ea for the polymerization of amine polymerized epoxide polymers was found to be about 14 to 17 Kcalmole. After polymerization was complete, the activation energy Ec for the electrical conduction process in the solid polymers was calculated. Author-PL.

Author(s):

Warfield, R. W. ; Petree, M. C.

Author Organization(s):

NAVAL ORDNANCE LAB WHITE OAK MD

Pagination:

0018

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

NAVORD-6702

Monitor Series:

6702

Subject Terms

Joint Capability Areas:

JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means

Communities of Interest:

Materials and Manufacturing Processes

Descriptor(s):

*THERMOSETTING PLASTICS, AMIDES, EPITAXIAL GROWTH, ESTERS, POLYMERIZATION, POLYMERS, ELECTRICAL RESISTANCE, UREIDES

Keyword(s):

UREIDO ( N C( O) N )

Report Date:

1959 Aug 05