Source:http://linkedlifedata.com/resource/pubmed/id/19645495
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
33
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pubmed:dateCreated |
2009-9-2
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pubmed:abstractText |
A family of conjugated polymers with fused structures consisting of three to five thiophene rings and with the same alkyl side chains has been synthesized as a means to understand structure-property relationships. All three polymers showed well-extended conjugation through the polymer backbone. Ionization potentials (IP) ranged from 5.15 to 5.21 eV; these large values are indicative of their excellent oxidative stability. X-ray diffraction and AFM studies suggest that the polymer with the even number of fused thiophene rings forms a tight crystalline structure due to its tilted side chain arrangement. On the other hand, the polymers with the odd number of fused thiophene rings packed more loosely. Characterization in a field-effect transistor configuration showed that the mobility of the polymer with the even number of rings is 1 order of magnitude higher than its odd-numbered counterparts. Through this structure-property study, we demonstrate that proper design of the molecules and properly arranged side chain positions on the polymer backbone can greatly enhance polymer electronic properties.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
1520-5126
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:day |
26
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pubmed:volume |
131
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
11930-8
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pubmed:meshHeading |
pubmed-meshheading:19645495-Alkanes,
pubmed-meshheading:19645495-Chromatography, Gel,
pubmed-meshheading:19645495-Electrochemistry,
pubmed-meshheading:19645495-Polymers,
pubmed-meshheading:19645495-Semiconductors,
pubmed-meshheading:19645495-Spectrophotometry, Ultraviolet,
pubmed-meshheading:19645495-Structure-Activity Relationship,
pubmed-meshheading:19645495-Temperature,
pubmed-meshheading:19645495-Thiophenes,
pubmed-meshheading:19645495-Transistors, Electronic,
pubmed-meshheading:19645495-X-Ray Diffraction
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pubmed:year |
2009
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pubmed:articleTitle |
Alkylsubstituted thienothiophene semiconducting materials: structure-property relationships.
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pubmed:affiliation |
Corning Incorporated, SP-FR-6, Corning, New York 14830, USA. hem@corning.com
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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