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Please use this identifier to cite or link to this item: http://purl.org/purl/1995

Title: Diblock and Triblock Copolymers of Styrene and Acetoxymethylstyrene by One-Pot ATRP
Authors: George,K E
Rajan, M
Agarwal, U S
Bally, C
Lemstra, P J
Keywords: Atom transfer radical polymerization
Block copolymers
Issue Date: 2005
Publisher: Wiley InterScience
Abstract: We describe the synthesis of diblock and triblock copolymers by sequential atom transfer radical polymerization of styrene and acetoxymethylstyrene. Contrary to the usual block copolymerization involving isolation of the macroinitiator, a convenient one-pot procedure is developed. This is possible because of the preferential polymerization of acetoxymethylstyrene, even in the presence of residual styrene, as inferred from characterization of the intermediate polystyrenes and the block copolymers by size exclusion chromatography, 1H NMR, Fourier transform infrared spectroscopy, differential scanning calorimetry, and GPEC techniques. The latent acetoxy functionalities in these block copolymers are shown to be easily unmasked to OOH and OBr functionalities, with the potential for block ionomers and dense graft architectures.
URI: http://dyuthi.cusat.ac.in/xmlui/purl/1995
Appears in Collections:Dr. K E George

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