| Literature DB >> 26166860 |
Lucas Hauser1, Astrid-Caroline Knall1, Meinhart Roth1, Gregor Trimmel1, Matthias Edler2, Thomas Griesser2, Wolfgang Kern2.
Abstract
ABSTRACT: In this paper, the synthesis aclass="Disease">nd characterization of <class="Chemical">span class="Chemical">poly(norbornene) homo- and copolymers bearing spiropyran side groups are described. Difficulties in the homopolymerization of spiropyrans due to the opened merocyanine form were observed leading to low polymerization yields for homopolymers while copolymers with 10 mol% spiropyran content were prepared in good yield. Spiropyrans are characterized by their reversible photochromism, which was conserved in the polymers as shown by UV-Vis spectroscopy and FT-IR spectroscopy. The switching between the apolar spiropyran form and the zwitterionic merocyanine form also leads to switchable wettability as evidenced by contact angle measurements.Entities:
Keywords: Photochemistry; Photolithography; Ring-opening metathesis polymerization; Spiro compounds
Year: 2012 PMID: 26166860 PMCID: PMC4495054 DOI: 10.1007/s00706-012-0827-0
Source DB: PubMed Journal: Monatsh Chem ISSN: 0026-9247 Impact factor: 1.451