Abstract
The dispersion copolymerization of methyl methacrylate (MMA) with macromonomeric azoinitiator, MIM-400, as a macrocrosslinker initiated by the benzoyl peroxide (BPO)/N,N′dimethylaniline (DMA) coupled in water/ethanol (4/1, v/v) at 20°C was carried out to yield PEG-b-PMMA networks with labile azo linkages in the main chain. Gel fraction, swelling ratios (qv) and the average molecular weights between junction points (Mc) values of the networks were investigated. Maximum gel fraction was obtained using 0.133M MIM-400, 9.2×10−2M BPO, 2.1×10−2M DMA and 2.19M MMA.
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