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RESEARCH PRODUCT
Temperature-Responsive Surface Coatings Based on Poly(methylsilsesquioxane)-hybrid Polymers
Daniel KesslerPatrick Theatosubject
chemistry.chemical_classificationMaterials sciencePolymers and PlasticsCapillary actionOrganic ChemistryPolymerCondensed Matter PhysicsLower critical solution temperatureSilsesquioxanechemistry.chemical_compoundchemistryChemical engineeringPolymer chemistryMaterials ChemistryCopolymerSurface modificationReversible addition−fragmentation chain-transfer polymerizationWettingdescription
The present paper presents a new method to build up temperature-responsive surfaces. First a poly(silsesquioxane)-block-poly(N-isopropyl-acrylamide) (PMSSQ-b-PNIPAM) was successfully synthesized using RAFT polymerization. Spin-coating or dip-coating of PMSSQ-b-PNIPAM onto glass surfaces resulted in temperature-responsive surfaces. Surface ATR FT-IR measurements proofed the successful surface modification using PMSSQ-b-PNIPAM. IR fine structures of PNIPAM and PMSSQ could be assigned, respectively. In capillary rise experiments a change of the meniscus height measured at temperatures below or above LCST was observed, indicating a different wetting behavior. Thus, a simple spin- or dip-coating step results in a clean and temperature-responsive surface.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-04-01 | Macromolecular Symposia |