Computer Simulation of Controlled Radical Polymerization: Effect of Chain Confinement Due to Initiator Grafting Density and Solvent Quality in “Grafting From” Method

2010 ◽  
Vol 43 (22) ◽  
pp. 9567-9577 ◽  
Author(s):  
Salomon Turgman-Cohen ◽  
Jan Genzer
Keyword(s):  
Computer Simulation ◽  
Radical Polymerization ◽  
Controlled Radical Polymerization ◽  
Solvent Quality ◽  
Grafting Density ◽  
Chain Confinement ◽  
Grafting From

Atom Transfer Radical Graft Copolymerization on a Poly(Epichlorohydrin-CO-Ethylene Oxide) (ECO) Elastomer

2008 ◽  
Vol 81 (1) ◽  
pp. 47-59 ◽  
Author(s):  
Kalaga Manikyaharithus ◽  
Nikhil K. Singha
Keyword(s):  
Ethylene Oxide ◽  
Radical Polymerization ◽  
Graft Copolymerization ◽  
Microphase Separation ◽  
Controlled Radical Polymerization ◽  
Side Reactions ◽  
Atom Transfer ◽  
Poor Control ◽  
Ft Ir ◽  
Grafting From

Abstract Graft copolymerization by conventional radical polymerization leads to poor control in molecular weight and quite often gel formation because of several side reactions. In this investigation, PMMA was grafted on poly(epichlorohydrine-co-ethylene oxide) (ECO) elastomer by using ‘grafting from’ technique via atom transfer radical polymerization (ATRP), a very recently developed method of controlled radical polymerization. The pendant —Cl group in ECO rubber was activated by using CuBr catalyst and thus macromolecular chain in ECO rubber acted as macroinitiator. Grafting of PMMA on ECO was confirmed by FT-IR and NMR analyses. DSC traces showed two Tgs in PMMA grafted ECO rubbers indicating microphase separation of hard and glassy PMMA microdomains in the flexible elastomeric ECO matrix. Interestingly, there was large increase in tensile strength and tension set in the ECO-grafted-PMMA materials.

PMMA functionalized boron nitride sheets as nanofillers

Nanoscale ◽  
2015 ◽  
Vol 7 (22) ◽  
pp. 10193-10197 ◽  
Author(s):  
Zhenhua Cui ◽  
Andre P. Martinez ◽  
Douglas H. Adamson
Keyword(s):  
Mechanical Properties ◽  
Boron Nitride ◽  
Polymer Composites ◽  
Radical Polymerization ◽  
Controlled Radical Polymerization ◽  
Grafting From

Polymer functionalized boron nitride sheets is prepared by a grafting from method using controlled radical polymerization and used as a nanofiller for polymer composites, enhancing the mechanical properties of the composite.

Water soluble well-defined acidic graft copolymers based on a poly(propylene glycol) macromonomer

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3627-3635 ◽  
Author(s):  
Paulina Maksym-Bębenek ◽  
Tadeusz Biela ◽  
Dorota Neugebauer
Keyword(s):  
Propylene Glycol ◽  
Radical Polymerization ◽  
Methacrylic Acid ◽  
Graft Copolymers ◽  
Controlled Radical Polymerization ◽  
Water Soluble ◽  
Glycol Methacrylate ◽  
Grafting From ◽  
Poly Propylene

A copolymers based on poly(propylene glycol) methacrylate (PPGMA) extended with a polymethacrylate segment containing methacrylic acid units was synthesized combining controlled radical polymerization, esterification, grafting from, and acidolysis.

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