Unimolecular Photopolymerization of High-Emissive Materials on Cylindrical Self-Assemblies
2015 (English)In: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 48, no 15, 5099-5105 p.Article in journal (Refereed) Published
We report a novel self-assembly pathway from a bis(imidazolyl) diphenyl-diacetylene (DPDA) compound as a realization of self-templated photopolymerization with high polymerization degrees. The work takes advantage of a cylindrical self-assembly that strengthens the preorganization of the diphenyl-diacetylene moiety at the single molecular level. On this basis, photopolymerization of DPDA can be conducted smoothly to form high-molecular-weight polydiphenyl diacetylene. Such a cylindrical self-assembly is highly dependent on molecular structure, and control studies show that only oligomers can be formed on random self-assemblies from a monoimidazolyl or nonimidazolyl diphenyl-diacetylene compound. Moreover, the cylindrical self-assembly based systems bear aggregation-induced emission enhancement characteristics and are solution processable. The leading thin-film could afford a selectively tunable function in luminescent micropatterns.
Place, publisher, year, edition, pages
2015. Vol. 48, no 15, 5099-5105 p.
IdentifiersURN: urn:nbn:se:kth:diva-173266DOI: 10.1021/acs.macromol.5b01488ISI: 000359500100004ScopusID: 2-s2.0-84938932197OAI: oai:DiVA.org:kth-173266DiVA: diva2:853257
QC 201509112015-09-112015-09-092015-09-11Bibliographically approved