Quantum Mechanical Investigation on Bimolecular Hydrogen Abstractions in Butyl Acrylate-Based Free Radical Polymerization Processes

2014 ◽  
Vol 118 (10) ◽  
pp. 1799-1806 ◽  
Author(s):  
Evangelos Mavroudakis ◽  
Danilo Cuccato ◽  
Davide Moscatelli
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Butyl Acrylate ◽  
Free Radical Polymerization ◽  
Quantum Mechanical ◽  
Mechanical Investigation

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

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1317 ◽  
Author(s):  
J. Fage ◽  
K. Knoll ◽  
N. Niessner ◽  
O. Carstensen ◽  
T. Schulz ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Free Radical ◽  
Radical Polymerization ◽  
Butyl Acrylate ◽  
Free Radical Polymerization ◽  
Cross Linking ◽  
Analogous Reaction ◽  
Transmission Electron ◽  
Structure Morphology ◽  
Reactive Groups

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.

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