Abstract
This study examines the radical copolymerization in homogeneous and emulsion of the monomer system acrylonitrile/styrene. These copolymers are of great interest to the plastics industry, because they combine the good mechanical properties and implementation provided by the styrene units in the very high solvent resistance and extreme gas impermeability provided by the acrylonitrile units. The properties of a copolymer are directly related to its composition and distribution of monomer units in its macromolecular chains. Based on the reports of the couple reactivity's of monomers (AN/S) found in the literature, the objective of the work is to provide theoretical simulation (by analytical and numerical integration of the equation of copolymerization): The kinetics of the reaction copolymerization of AN/S in a homogeneous medium and emulsion (drift composition, azeotropic) and the microstructure (distribution of monomer sequences) and the glass transition property of the macromolecular chains instant formed throughout the copolymerization reaction.
Highlights
The two main axes of orientation of research and development of plastic materials with mixed or new properties relate to their development either with an operation of mixture of homopolymers, or by a simultaneous reaction of two or several monomers of different chemical structures
This study examines the radical copolymerization in homogeneous and emulsion of the monomer system acrylonitrile/styrene
The properties of a copolymer are directly related to its composition and distribution of monomer units in its macromolecular chains
Summary
The two main axes of orientation of research and development of plastic materials with mixed or new properties relate to their development either with an operation of mixture of homopolymers, or by a simultaneous reaction of two or several monomers of different chemical structures. If the first method seems a priori interesting and easy to implement, it is not realizable in practice, because the macromolecules of different chemical structures seldom form miscible mixtures ( Gmelange > 0) causing heterogeneous materials with poor properties. The specific properties to this material copolymer are directly related on its chemical composition and the distribution of the monomer reasons in the chains of copolymer. These parameters are controlled primarily by the fundamental sizes of the reaction of copolymerization which are the reports of reactivity of the monomers which constitute the intrinsic sizes of a couple of monomers given. Copolymerization is a process privileged for the engineer to find material more adapted for a given application
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
