Polyolefin graft copolymers via living polymerization techniques: Preparation of poly(n-butyl acrylate)-graft-polyethylene through the combination of Pd-mediated living olefin polymerization and atom transfer radical polymerization

2002 ◽  
Vol 40 (16) ◽  
pp. 2736-2749 ◽  
Author(s):  
Sung Chul Hong ◽  
Shijun Jia ◽  
Mircea Teodorescu ◽  
Tomasz Kowalewski ◽  
Krzysztof Matyjaszewski ◽  
...  
2012 ◽  
Vol 441 ◽  
pp. 478-483 ◽  
Author(s):  
Chuan Xia Huang ◽  
Ling Min Yi ◽  
Hao Yu Yuan ◽  
Chang Qin Chen

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-Brm) as the macroinitiators and CuBr/N,N,N,N,N- pentamethyldiethylenetriamine (PMDETA) as the catalyst system. The PDMS-Brm 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.


Langmuir ◽  
2003 ◽  
Vol 19 (16) ◽  
pp. 6342-6345 ◽  
Author(s):  
Tianqi Liu ◽  
Shijun Jia ◽  
Tomasz Kowalewski ◽  
Krzysztof Matyjaszewski ◽  
Rosa Casado-Portilla ◽  
...  

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