Accession Number : AD0460513


Title :   A NEW METHOD FOR STUDYING CRYSTALLIZATION OF POLYMERS.


Descriptive Note : Technical rept.,


Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD


Personal Author(s) : Warfield, Robert W ; Volpe, Angelo A


Report Date : 25 Feb 1965


Pagination or Media Count : 18


Abstract : Electrical volume resistivity measurements made isothermally during the primary crystallization have been used to follow the course of the bulk crystallization of polydecamethylene adipate. The extreme temperature dependence of the rate of crystallization is clearly shown. Also, the data have been converted into a form whereby kinetic parameters may be calculated. The results indicate that resistivity measurements are sensitive to crystallization and can be employed to investigate the kinetics of crystallization. (Author)


Descriptors :   *POLYMERS , CRYSTALLIZATION , ELECTRICAL RESISTANCE , MEASUREMENT , VOLTAGE , INSTRUMENTATION , ELECTROMETERS , POLYETHYLENE PLASTICS , TEST METHODS , TEMPERATURE , MELTING


Distribution Statement : APPROVED FOR PUBLIC RELEASE