Macromolecular surface design: photopatterning of functional stable nitrile oxides

Angewandte Chemie
Ozcan AltintasChristopher Barner-Kowollik

Abstract

The efficient trapping of photogenerated thioaldehydes with functional shelf-stable nitrile oxides in a 1,3-dipolar cycloaddition is a novel and versatile photochemical strategy for polymer end-group functionalization and surface modification under mild and equimolar conditions. The modular ligation in solution was followed in detail by electrospray ionization mass spectrometry (ESI-MS). X-ray photoelectron spectroscopy (XPS) was employed to analyze the functionalized surfaces, whereas time-of-flight secondary-ion mass spectrometry (ToF-SIMS) confirmed the spatial control of the surface functionalization using a micropatterned shadow mask. Polymer brushes were grown from the surface in a spatially confined regime by surface-initiated atom transfer radical polymerization (SI-ATRP) as confirmed by TOF-SIMS, XPS as well as ellipsometry.

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Citations

Sep 4, 2015·Organic Letters·Bérénice C Lemercier, Joshua G Pierce
Feb 19, 2016·Angewandte Chemie·Tanja K ClausChristopher Barner-Kowollik
Jul 5, 2017·Macromolecular Rapid Communications·Tanja K ClausChristopher Barner-Kowollik
Mar 22, 2018·Chemical Communications : Chem Comm·Carolin HeilerChristopher Barner-Kowollik
Apr 7, 2017·Chemical Communications : Chem Comm·Bryan T TutenChristopher Barner-Kowollik
Sep 1, 2015·Chemistry : a European Journal·Christiane LangChristopher Barner-Kowollik
Sep 4, 2015·Angewandte Chemie·Guillaume DelaittreChristopher Barner-Kowollik
Feb 26, 2019·Angewandte Chemie·Bryan T TutenChristopher Barner-Kowollik
Feb 20, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Joachim LaunTanja Junkers
Feb 6, 2020·The Journal of Organic Chemistry·Takashi IkawaShuji Akai

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