Synthesis of PS-b-PAA diblock copolymer for antifouling zipper brush coatings.

Ruhof, Ilan (2021) Synthesis of PS-b-PAA diblock copolymer for antifouling zipper brush coatings. Master's Thesis / Essay, Chemistry.

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Abstract

In this project, a method to synthesize a diblock copolymer consisting of a hydrophobic polystyrene (PS) block and a hydrophilic poly(acrylic acid) (PAA) block via reversible addition−fragmentation chain-transfer (RAFT) polymerization was successfully developed. The first RAFT polymerization synthesis of PS with DDMAT as a chain transfer agent (CTA) was monitored by NMR and obtained polymers were analysed by GPC. A second block of poly(tert-butyl acrylate)(PtBA) was added by RAFT, again monitored by NMR and measured by GPC. The PS-b-PtBA polymer was then deprotected with acid (HCl) in 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP), resulting in a fully deprotected PS-b-PAA polymer. Various ratios and lengths of PS-b-PAA diblock copolymer with low dispersity (PDI <1.3) were synthesized reproducibly. A CTA removal was performed on PS-b-PAA to investigate the influence of the CTA on brush formation. This was assessed by analysing the micelle formation of the diblock copolymer. Using a photocatalytic reaction, the CTA was successfully removed from the PS-b-PAA diblock copolymer.

Item Type:	Thesis (Master's Thesis / Essay)
Supervisor name:	Kamperman, M.M.G.
Degree programme:	Chemistry
Thesis type:	Master's Thesis / Essay
Language:	English
Date Deposited:	19 Mar 2021 12:33
Last Modified:	19 Mar 2021 12:33
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/24097

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