期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 141, 期 16, 页码 6479-6483出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.9b01736
关键词
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资金
- U.S. Army Research Office [W911NF-15-1-0525]
- National Science Foundation CAREER Award [1453247]
- Direct For Biological Sciences
- Div Of Molecular and Cellular Bioscience [1453247] Funding Source: National Science Foundation
We have previously reported a polymechanophore system, polyladderene, which underwent dramatic bond rearrangement in response to mechanical force to yield semiconducting polyacetylene. Herein, we report the scalable synthesis of benzoladderenes as new mechanophore monomers. Ring-opening metathesis polymerization of benzoladderenes yielded homopolymers and block copolymers with controlled molecular weights and low dispersity. The resulting nonconjugated poly-(benzoladderene) was mechanochemically transformed into conjugated poly(o-phenylene-hexatrienylene) by sonication, with degrees of transformation up to 40-45%. These benzoladderenes and their resulting polymers are easier to synthesize than the polyladderene system and allow mechanochemical generation of conjugated polymers beyond polyacetylene.
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