Silicon surface modification with silane-functionalized polymers

Kalpana Viswanathan*, Timothy Edward Long, Thomas C. Ward

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The synthesis of trimethoxysilane end-capped linear polystyrene (PS), star-branched PS, and subsequent silicon (Si) surface modification with the linear and star polymers are described. Trimethoxysilane terminated PS was synthesized using sec-butyl lithium initiated anionic polymerization of styrene and subsequent end-capping with p-chloromethylphenyl trimethoxysilane (CMPTMS). Acid catalyzed hydrolysis and condensation of the trimethoxysilane end-groups resulted in star-branched PS. This is the first report of core-functionalized star-shaped polymers as surface modifiers and the first comparative study showing differences in surface topography between star and linear polymer modified surfaces. Comparison of polymer film properties to polymer dimensions in dilute solution revealed that the linear PS chains were in the intermediate brush regime and the star-branched PS produced a surface with covalently attached chains in the mushroom regime.

Original languageEnglish
Title of host publication2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
EditorsM. Laudon, B. Romanowicz
Number of pages4
Publication statusPublished - 2005 Dec 1
Externally publishedYes
Event2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 - Anaheim, CA, United States
Duration: 2005 May 82005 May 12


Other2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005
Country/TerritoryUnited States
CityAnaheim, CA


  • Anionic polymerization
  • Hydrolysis and condensation
  • Polymer mushrooms and brushes
  • Sol-gel chemistry
  • Star polymers
  • Surface modification

ASJC Scopus subject areas

  • Engineering(all)


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