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Simultaneous Preparation of Multiple Polymer Brushes under Ambient Conditions using Microliter Volumes |
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| Authors: | Benjaporn Narupai Dr Zachariah A Page Dr Nicolas J Treat Alaina J McGrath Dr Christian W Pester Emre H Discekici Neil D Dolinski Dr Gregory F Meyers Prof Javier Read?de?Alaniz Prof Craig J Hawker |
| Institution: | 1. Materials Research Laboratory, University of California, Santa Barbara, CA, USA;2. Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, USA;3. The Dow Chemical Company, Midland, MI, USA |
| Abstract: | The fabrication of well‐defined, multifunctional polymer brushes under ambient conditions is described. This facile method uses light‐mediated, metal‐free atom‐transfer radical polymerization (ATRP) to grow polymer brushes with only microliter volumes required. Key to the success of this strategy is the dual action of N‐phenylphenothiazine (PTH) as both an oxygen scavenger and polymerization catalyst. Use of simple glass cover slips results in a high degree of spatial and temporal control and allows for multiple polymer brushes to be grown simultaneously. The preparation of arbitrary 3D patterns and functional/emissive polymer brushes demonstrates the practicality and versatility of this novel strategy. |
| Keywords: | copolymerization light-mediated radical polymerization photochemistry polymer brushes |