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Sunday, 22 September 2019
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Raw materials & technologies, Raw materials

Chemical vapour deposition of soluble copolymers with tuneable properties

Tuesday, 19 January 2016

Chemical vapour deposition (CVD) is a technique widely applied for the synthesis of thin and highly conformal polymer coatings.

Chemical vapour deposition (CVD) is a technique widely applied for the synthesis of thin and highly conformal polymer coatings. Source: Kay Ransom/Fotolia
Chemical vapour deposition (CVD) is a technique widely applied for the synthesis of thin and highly conformal polymer coatings. Source: Kay Ransom/...

The copolymerisation of poly(1,4-xylylene)s (PPX), with 2-hydroxyethyl methacrylate (HEMA) via CVD revives a hardly investigated field of PPX chemistry.

Hydroxy ester functionality was indirectly confirmed

The use of alkyl substituted [2.2]paracyclophanes leads to soluble PPX-copolymers. Proof of copolymerisation was obtained by correlation of both monomer units in 1H,13C-HMBC 2D-NMR spectra. Next, insoluble p(PX-N-co-HEMA) copolymers were synthesised in a modified commercially available SCS Labcoater. The availability of the hydroxy ester functionality of HEMA on the film surface was indirectly confirmed by the reduction of water contact angles down to 65°. Preliminary studies using human umbilical vein endothelial cells (HUVEC) indicate the cytocompatibility of as deposited p(PX-N-co-HEMA) films.

The study is published in: Polymer Chemistry, Issue 1, 2016.

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