Polymerization kinetics of reactive N,N′-bismaleimide-4,4′-diphenylmethane/barbituric acid based microgel particles

Autor:	Fu-En Yu, Jing-Pin Pan, Tsung-Hsiung Wang, Quoc-Thai Pham, Jung-Mu Hsu, Chorng-Shyan Chern
Rok vydání:	2014
Předmět:	Barbituric acid Hydroquinone Chemistry Radical polymerization Diphenylmethane Atmospheric temperature range Condensed Matter Physics chemistry.chemical_compound Polymerization Polymerization kinetics Polymer chemistry Michael reaction Physical and Theoretical Chemistry Instrumentation
Zdroj:	Thermochimica Acta. 597:1-7
ISSN:	0040-6031
DOI:	10.1016/j.tca.2014.10.009
Popis:	Non-isothermal polymerization kinetics of reactive N,N′-bismaleimide-4,4′-diphenylmethane/barbituric acid microgel particles (BMI/BTA MPs) and BMI/BTA/hydroquinone (HQ) MPs in N-methyl-2-pyrrolidone (NMP) solution studied. The model-fitting method in combination with the model-free method was used to determine the kinetic parameters for the polymerizations of reactive BMI/BTA MPs and BMI/BTA/HQ MPs. The results show that Michael addition polymerization predominates in BMI/BTA/HQ MPs in the temperature range 95–140 °C. For BMI/BTA MPs, free radical polymerization plays a crucial role in the temperature range 70–95 °C, whereas Michael addition polymerization becomes significant when the temperature is higher than 120 °C. The non-isothermal polymerization processes were satisfactorily predicted by the same contracting cylinder model for both the BMI/BTA MPs and BMI/BTA/HQ MPs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::275eb5a9e2d786d6d22ab2b765fa2d1e https://doi.org/10.1016/j.tca.2014.10.009 Zobrazit plný text záznamu Full Text from ScienceDirect