Thermally stimulated depolarization currents of tactic polymethyl methacrylates and their mixtures View Full Text


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Article Info

DATE

1981-03

AUTHORS

K. Ohara, G. Rehage

ABSTRACT

Thermally stimulated depolarization currents (TSDC) of atactic (a), syndiotactic (s) and isotactic (i) PMMA and mixtures ofs- andi-PMMA were measured. In pure tactic PMMA, TSDC peak was obtained at a temperature corresponding to the glass transition temperature of each PMMA. TSDC of mixtures isolated as precipitates from 1/1 and 1/2 (i/sweight ratio) mixed solutions showed a peak which can be attributed to the glass transition temperature of the stereocomplex. TSDC of original l/1 mixture showed two peaks which are ascribed to the glass transition temperature of residual i-PMMA and the stereocomplex. The results suggests that stereocomplex formation occurs ini/s weight ratio of 1/2 independent of the way of preparation. More... »

PAGES

318-325

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf01524710

DOI

http://dx.doi.org/10.1007/bf01524710

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1017299057


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