A Route to Modify Polymeric Pigment Dispersants with Polysiloxanes by Atom Transfer Radical Polymerization

Chuan Xia Huang; Ling Min Yi; Hao Yu Yuan; Chang Qin Chen

doi:10.4028/www.scientific.net/AMR.441.478

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 441A Route to Modify Polymeric Pigment Dispersants...

A Route to Modify Polymeric Pigment Dispersants with Polysiloxanes by Atom Transfer Radical Polymerization

Abstract:

A novel approach to modify polymeric pigment dispersants with polysiloxanes was developed based on the sequential atom transfer radical polymerization (ATRP) of styrene (St) and tert-butyl acrylate (tBA), using multifunctional α-bromoisobutyryl-containing poly (dimethylsiloxane) (PDMS-Br_m) as the macroinitiators and CuBr/N,N,N,N,N- pentamethyldiethylenetriamine (PMDETA) as the catalyst system. The PDMS-Br_m macroinitiators were obtained from the sequential hydrosilylation of commercially available methyl polysiloxanes containing SiH groups with allyl alcohol and then α-bromoisobutyryl bromide. And then, a series of well-defined comb-like graft copolymers with a PDMS backbone and several polystyrene-block-poly (tert-butyl acrylate) (PS-b-PtBA) side-chains were synthesized via ATRP. After hydrolyzing the tert-butyl groups, the comb-like copolymers may serve as multifunctional dispersing agents in the pigment printing.

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Periodical:

Advanced Materials Research (Volume 441)

Pages:

478-483

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.441.478

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Online since:

January 2012

Authors:

Chuan Xia Huang, Ling Min Yi, Hao Yu Yuan, Chang Qin Chen

Keywords:

Atom Transfer Radical Polymerization (ATRP), Comb-Like Graft Copolymers, Polymeric Pigment Dispersants, Polysiloxanes

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