Surface Modification via Reactive Polymer Interlayers

The reaction of poly[(1-methylvinyl isocyanate)- alt -(maleic anhydride)] (IAP) with amino-silanized glass and silicon oxide surfaces has been investigated. Different solvents and different adsorption conditions were compared to each other by FTIR spectroscopy and ellipsometry. A reactive surface containing isocyanate and anhydride groups was formed after the adsorption of the polymer. The latter can be further functionalized using different compounds bearing hydroxyl and amino groups. Mixed layers can be established by the reaction of IAP with other polymers, such as poly(ethylene glycol). Multilayers can be built up by adsorbing a second layer of IAP onto an already functionalized first layer of IAP.