Grafting of methacrylates and styrene on to polystyrene backbone via a “grafting from” ATRP process at ambient temperature
作者： A. V. Vivek , R. Dhamodharan
DOI: 10.1002/POLA.22131
关键词: Copolymer 、 Styrene 、 Polymer chemistry 、 Bromide 、 Atom-transfer radical-polymerization 、 Grafting 、 Materials science 、 Polymer 、 Polymerization 、 Polystyrene
摘要: Well defined graft copolymers are prepared by "grafting from" atom transfer radical polymerization (ATRP) at room temperature (30 °C). The experiments were aimed grafting methacrylates and styrene latent initiating sites of polystyrene. For this purpose, the benzylic hydrogen in polystyrene was subjected to allylic bromination with N-bromosuccinimide azobisisobutrylnitirle generate tertiary bromide ATRP (Br-C-PS). use Br-C-PS lesser mol % groups results better control successful copolymerization. This used synthesize a series new such as PS-g-PBnMA, PS-g-PBMA, PS-g-GMA, PS-g-(PMMA-b-PtBA) catalyzed CuBr/ PMDETA system, bulk, temperature. polymers characterized GPC, NMR, FTIR, TEM, TGA. Graft copolymerization followed block enabled synthesis highly branched polymer brush, which density can be adjusted appropriate choice concentration
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