Grafting from technique for synthesis of polymer films

The synthesis of the ATRP macroinitiator included two major steps deposition of the anchoring PGMA layer on the surface and attachment of bromoacetic acid (BAA) to the surface modified with the anchoring layer through the reaction between the carboxyl and epoxy functionalities. The reaction between 

2 AFM images of PGMA/BAA macroinitiator. Image size (a) 10 x 10 am, (b) 1 X 1 gm. Verticai scaie - 10 nm. (c) Surface density of attached BAA versus thickness of the anneaied (12h at 90°C) PGMA iayer. 

2 Atom transfer radical polymerization from macroinitiator 

The fundamental idea of ATRP is the halogen exchange in the polymerizing system between the halogen terminated growing polymer chain/Cu(l) dNbP complex and macroradical/Cu(II) dNbP complex. Chain propagation is a first order process while termination is a second order reaction. For conventional bulk or solution ATRP the equilibrium is strongly shifted to the left. The free 

To prove the controlled nature of the polymerization initiated from the surface by the PGMA/BAA macroinitiator, polymerization of styrene was conducted using the already grown PS brush of 19nm as an initiator. It was 

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Grafting from technique for synthesis of polymer films... 

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