Synthesis and Application of Polyelectrolyte Brushes

Boyes, Stephen G.; Cyrus, Crystal; Akgün, Bülent; Caplan, Adam; Mirous, Brian K.; Brittain, William J.

doi:10.1021/bk-2005-0912.ch004

Cited by 3 publications

(2 citation statements)

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“…An alternative route to polyelectrolyte brushes was published by Boyes et al 26 which involved the controlled polymerization of tertbutyl acrylate which was subsequently hydrolysed by aqueous HCl to yield poly(acrylic acid) brushes. These brushes can then be further derivatised to the silver salt by reaction with silver acetate solution.…”

Section: Atom Transfer Radical Polymerization (Atrp) Planar Substratesmentioning

confidence: 99%

Polymer brushes via surface-initiated polymerizations

2004

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Polymer brushes produced by controlled surface-initiated polymerization provide a route to surfaces coated with well-defined thin polymer films that are covalently bound to the substrate. All of the major controlled polymerization techniques have been applied to the synthesis of polymer brushes and examples of each are presented here. Many examples of brush synthesis in the literature have used the living atom transfer radical polymerization (ATRP) system, and in this tutorial review a particular focus is given to examples of this technique.

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Section: Atom Transfer Radical Polymerization (Atrp) Planar Substratesmentioning

confidence: 99%

Polymer brushes via surface-initiated polymerizations

2004

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“…Ruehe and co-workers used a surface-attached monolayer of an azo initiator to start the free radical polymerization of a variety of monomers and obtained polymer brushes with high grafting densitities. − Controlled radical polymerization was employed by several authors to synthesize spherical polymer brushes on the surface of polymer or inorganic particles. − Recently, we reported a new method of photoemulsion polymerization to prepare spherical polyelectrolyte brushes (SPBs) with a solid polystyrene (PS) core and a dense PAA brush shell (Figure ). − As a “grafting from” technique, photoemulsion polymerization shows several advantages: (1) the synthesis can be easily controlled by turning on/off the UV light and adjusting the light power; (2) the obtained SPBs show a well-defined brush structure with high grafting density; and (3) the SPB size and grafting density can be modulated by the amount of monomer and photoinitiator, respectively. But our understanding of photoemulsion polymerization is still limited.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Spherical Polyelectrolyte Brushes by Photoemulsion Polymerization with Different Photoinitiators

Wang

et al. 2011

Ind. Eng. Chem. Res.

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Nanosized spherical polyelectrolyte brushes (SPBs) with tunable size and grafting density were synthesized successfully by photoemulsion polymerization using three photoinitiators. Due to their difference in structure, UV absorption, and mechanism of photoinitiation, the kinetics of photoemulsion polymerization using these respective photoinitiators are different. The grafting densities of poly(acrylic acid) (PAA) brushes varied from 0.012 to 0.081 nm -2 by using different photoinitiators, as determined by cutting off the PAA chains from the core particles. All of the spherical PAA brushes prepared by these three photoinitiators are pH and ionic strength sensitive as demonstrated by DLS measurements. Well-defined spherical morphology with narrow size distribution for all of the brushes prepared has been observed by FESEM. This work opens a new way to control the synthesis of SPBs with tunable structure for potential applications in catalysis, wastewater treatment, disease diagnosis, and protein immobilization.

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