10.1021/la060027h.s001 M. Millaruelo M. Millaruelo L. M. Eng L. M. Eng M. Mertig M. Mertig B. Pilch B. Pilch U. Oertel U. Oertel J. Opitz J. Opitz B. Sieczkowska B. Sieczkowska F. Simon F. Simon B. Voit B. Voit Photolabile Carboxylic Acid Protected Terpolymers for Surface Patterning. Part 2:  Photocleavage and Film Patterning American Chemical Society 2006 Surface Patterning FTIR spectroscopy film patterning Photolabile Carboxylic laser irradiation carboxylic groups deprotection reaction fiber tips Film PatterningThe surface properties Protected Terpolymers contact angle measurements UV irradiation 2006-10-24 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Photolabile_Carboxylic_Acid_Protected_Terpolymers_for_Surface_Patterning_Part_2_Photocleavage_and_Film_Patterning/3052264 The surface properties of films made of <i>p</i>-methoxyphenacyl derivative terpolymers, associated with photocleavage by UV irradiation, and their optical patterning are investigated. The deprotection reaction has been monitored by UV and FTIR spectroscopy, contact angle measurements, and X-ray photoelectron spectroscopy, revealing the photoremoval of the protecting <i>p</i>-methoxyphenacyl group in high yields under mild conditions. Parallel and serial patterning of the films has been performed by selective irradiation through optical masks and by laser irradiation via fiber tips of a scanning near-field optical microscope, respectively. By irradiation of photolabile protected functional groups, free carboxylic groups become exposed to the surface with which fluorescent dyes and proteins can be associated specifically.