Study of polymer blends with variable architecture via monte carlo simulation

Abstract

This dissertation treats the role of chain architecture in binary polymer blends. Heteropolymer, with chemically identical and thin film geometry blends were studied. For these cases, linear/linear, linear/star and star/star polymer blends were studied. Finally, dendritic polymers of 1st generation were studied. The main aim of this dissertation is the study of the effect of architecture on the miscibility of the above mentioned blends for different chain molecular weights, volume fraction and number of branches of star chains. The study is done with simulation methods using the Bond Fluctuation Model. For heteropolymer blends, it was found that the miscibility of linear/linear blends is lower than that of linear/star chains. Moreover, star/star blends are more miscible than the corresponding linear/star mixtures, and the miscibility increases with the increase of the number of branches of star chains. In mixtures with chemically identical monomers, the drawn conclusions are the opposi ...
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DOI
10.12681/eadd/21401
Handle URL
http://hdl.handle.net/10442/hedi/21401
ND
21401
Alternative title
Μελέτη μιγμάτων πολυμερών με ποικίλη αρχιτεκτονική με προσομοίωση monte carlo
Author
Theodorakis, Panagiotis (Father's name: Eleftherios)
Date
2007
Degree Grantor
University of Ioannina
Committee members
Αυγερόπουλος Απόστολος
Χαραλαμπόπουλος Αντώνιος
Βλάχος Κωνσταντίνος
Κοσμάς Μάριος
Φλούδας Γεώργιος
Θεοδώρου Θεόδωρος
Οικονόμου Ιωάννης
Discipline
Engineering and Technology
Materials Engineering
Keywords
Polymer blends; Polymers of variable architecture; Miscibility of polymers; Monte Carlo simulation; Bond fluctuation model; Spinodal curves; Effective interaction parameter
Country
Greece
Language
Greek
Description
220 σ., im.
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