The influence of surface grafting on the growth rate of polymer chains

Literature Information

Publication Date 2015-10-29
DOI 10.1039/C5PY01521A
Impact Factor 5.582
Authors

Chengjun Kang, Rowena Crockett, Nicholas D. Spencer


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Abstract

The effect of surface grafting on growth kinetics during controlled radical polymerization (CRP) was investigated by comparing the growth of polymers in solution with that on a flat silicon surface. The surface-grafted polymers were attached to the surface via a photo-cleavable initiator, which allowed the polymers to be detached by means of UV light with a wavelength that did not lead to polymer photolysis. The molecular weights of surface- and solution-grown polymers were determined by size-exclusion chromatography (SEC). It could be shown that for a series of polymers synthesized from alkyl methacrylate monomers, it was principally the grafting density that determined the ratio of the molecular weight on the surface to that in solution.

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Polymer Chemistry

Polymer Chemistry
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