Poly (Butyl Acrylate)-Graft-Polystyrene Synthesis by Free-Radical Polymerization: Interplay between Structure, Morphology, Mechanical, and Optical Properties

Autor:	Manfred Döring, Konrad Knoll, T. Schulz, N. Niessner, O. Carstensen, Frank Schönberger, J. Fage, F. Malz
Přispěvatelé:	Publica
Rok vydání:	2019
Předmět:	transparency Acrylate Materials science Polymers and Plastics Butyl acrylate poly (butyl acrylate) Radical polymerization toughness Backbone chain General Chemistry polystyrene Article Styrene lcsh:QD241-441 chemistry.chemical_compound lcsh:Organic chemistry chemistry Polymerization graft copolymers morphology Polymer chemistry Copolymer Polystyrene free-radical polymerization
Zdroj:	Polymers Volume 11 Issue 8 Polymers, Vol 11, Iss 8, p 1317 (2019)
ISSN:	2073-4360
Popis:	We report a new method of preparation of poly (butyl acrylate)-g-polystyrene/polystyrene blends by free-radical polymerization. Copolymerization of glycidyl (meth)acrylate with butyl acrylate is followed by a polymer analogous reaction of this copolymer with acrylic acid and subsequent copolymerization of the modified backbone with styrene. Investigation on the number of reactive groups per backbone chain and its molecular weight allows grafting efficiencies of about 35% to be reached, as well as low cross-linking. Blends of nanophase-separated copolymers having a backbone with Mn of around 50 kg/mol and 4 reactive groups per chain are transparent, with haze as low as 14%, tensile strength of around 22 MPa, and elongations at the break of around 3%. Correlation between morphology determined by transmission electron microscopy and properties of the blend is established.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e5dd7e5bb6d4a24cc9b53951c96117a https://doi.org/10.3390/polym11081317 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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