Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 136, Issue 38, Pages 13381-13387Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja507318u
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Funding
- Department of the Army Basic Research Program
- Edgewood Chemical Biological Center
- Army Research Office [W911NF-12-1-0252]
- NSF CAREER [DMR-1351293]
- Department of Defense (DOD)
- Army Basic Research Program
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1351293] Funding Source: National Science Foundation
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With the aim to achieve rapid and efficient topochemical polymerizations in the solid state, via solution-based processing of thin films, we report the integration of a diphenyldiacetylene monomer and a poly(styrene-b-acrylic acid) block copolymer template for the generation of supramolecular architectural photopolymerizable materials. This strategy takes advantage of non-covalent interactions to template a topochemical photopolymerization that yields a polydiphenyldiacetylene (PDPDA) derivative. In thin films, it was found that hierarchical self-assembly of the diacetylene monomers by microphase segregation of the block copolymer template enhances the topochemical photopolymerization, which is complete within a 20 s exposure to UV light. Moreover, UV-active cross-linkable groups were incorporated within the block copolymer template to create micropattems of PDPDA by photolithography, in the same step as the polymerization reaction. The materials design and processing may find potential uses in the microfabrication of sensors and other important areas that benefit from solution-based processing of flexible conjugated materials.
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