PARTICLE NUCLEATION USING DIFFERENT INITIATORS IN THE MINIEMULSION POLYMERIZATION OF STYRENE
نویسندگان
چکیده
منابع مشابه
Miniemulsion polymerization of styrene in the presence of macromonomeric initiators
Macromonomeric azo initiators (macroinimers, MIM) which have the properties of macromonomers, macrocrosslinkers and macroinitiators in a macrostructure were used in miniemulsion polymerization of styrene in the presence or absence of any other stabilizer and initiator. MIMs were prepared from the reaction of 4,40-dicyano-4,40-azovaleryl chloride, with poly(ethylene glycol) (PEG) of different mo...
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Ultrasonic transmission is a simple, non-destructive method to characterize turbid systems like e.g. emulsions or polymer dispersion. Here we use this technique for in-line monitoring of the miniemulsion polymerization of styrene. Either the ultrasound attenuation or the velocity signal provides a fingerprint characterizing the reaction process. During the reaction process the sound velocity in...
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polymerization of styrene in presence of two monofunctional initiators is studied kinetically in an ampoule scale. polymerizations were ceased at different conversions for each ampoule while the temperature was increased almost linearly during the reaction. three different initiator mixtures were used. the first mixtures were composed of benzoil peroxide (bpo) and t-butyl perbenzoate (tbpb) wit...
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ژورنال
عنوان ژورنال: Brazilian Journal of Chemical Engineering
سال: 2015
ISSN: 0104-6632
DOI: 10.1590/0104-6632.20150321s00003150