Thermodynamic Synthesis of Solution Processable Ladder Polymers

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dc.contributor.utaustinauthorZheng, Yuebingen_US
dc.contributor.utaustinauthorZheng, Yuebingen
dc.creatorLee, Jongboken_US
dc.creatorRajeeva, Bharath Bangaloreen_US
dc.creatorYuan, Tianyu Y.en_US
dc.creatorGuo, Zi-Haoen_US
dc.creatorLin, Yen-Haoen_US
dc.creatorAl-Hashimi, Mohammeden_US
dc.creatorZheng, Yuebingen_US
dc.creatorFang, Leien_US
dc.date.accessioned2016-09-23T18:07:27Z
dc.date.available2016-09-23T18:07:27Z
dc.date.issued2015-11en_US
dc.description.abstractThe synthesis of a carbazole-derived, well-defined ladder polymer was achieved under thermodynamic control by employing reversible ring-closing olefin metathesis. This unique approach featured mild conditions and excellent efficiency, affording the ladder polymer backbone with minimum levels of unreacted defects. Rigorous NMR analysis on a C-13 isotope-enriched product revealed that the main-chain contained less than 1% of unreacted precursory vinyl groups. The rigid conformation of the ladder-type backbone was confirmed by photophysical analysis, while the extended rod-like structure was visualized under scanning tunneling microscope. Excellent solubility of this polymer in common organic solvents allowed for feasible processing of thin films using solution-casting techniques. Atomic force microscopy and grazing incident X-ray scattering revealed a uniform and amorphous morphology of these films, in sharp contrast to the polycrystalline thin films of its small molecular counterpart.en_US
dc.description.departmentMechanical Engineeringen_US
dc.description.sponsorshipNational Priorities Research Program award from the Qatar National Research Fund NPRP7-285-1-045en_US
dc.description.sponsorshipU. S. Department of Energy, Office of Science, Office of Basic Energy Sciences DE-AC02-06CH11357en_US
dc.identifierdoi:10.15781/T24T6F46X
dc.identifier.citationLee, Jongbok, Bharath Bangalore Rajeeva, Tianyu Yuan, Zi-Hao Guo, Yen-Hao Lin, Mohammed Al-Hashimi, Yuebing Zheng, and Lei Fang. "Thermodynamic synthesis of solution processable ladder polymers." Chemical Science 7, no. 2 (Nov., 2015): 881-889.en_US
dc.identifier.doi10.1039/c5sc02385hen_US
dc.identifier.issn2041-6520en_US
dc.identifier.urihttp://hdl.handle.net/2152/41163
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialChemical Scienceen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionOpenen_US
dc.subjectring-closing metathesisen_US
dc.subjectstructure-property relationshipsen_US
dc.subjectolefinen_US
dc.subjectmetathesisen_US
dc.subjectmolecular-weighten_US
dc.subjectpolymerization defectsen_US
dc.subjectgrapheneen_US
dc.subjectnanoribbonsen_US
dc.subjectconjugated polymersen_US
dc.subjectsolar-cellsen_US
dc.subjectefficiencyen_US
dc.subjectimpacten_US
dc.subjectchemistry, multidisciplinaryen_US
dc.titleThermodynamic Synthesis of Solution Processable Ladder Polymersen_US
dc.typeArticleen_US

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