Nature of the end groups in polystyrene prepared using benzoyl peroxide as sensitizer

Autor:	J. C. Bevington, C. S. Brooks
Rok vydání:	1956
Předmět:	chemistry.chemical_classification Polymer Benzoyl peroxide Peroxide chemistry.chemical_compound Hydrolysis chemistry Group (periodic table) Polymer chemistry medicine Organic chemistry Polystyrene Benzene medicine.drug
Zdroj:	Journal of Polymer Science. 22:257-261
ISSN:	1542-6238 0022-3832
DOI:	10.1002/pol.1956.1202210108
Popis:	Samples of polystyrene prepared using benzoyl peroxide labeled with carbon-14 in the carboxyl group only have been used to establish the conditions necessary for complete hydrolysis of the ester end groups in the polymers. Polymers prepared using 14C-benzoyl peroxide either uniformly labeled or labeled in the benzene rings only, contain both labeled benzoyloxy and labeled phenyl end groups. From the behavior of these polymers on hydrolysis, the proportions of the two types of end groups can be determined accurately; these proportions depend upon the conditions under which the polymers are prepared.
Databáze:	OpenAIRE
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