دورية أكاديمية
Highly Ordered Thin Fims of Polyheterocycles: A Synchrotron Radiation Study of Polypyrrole and Polythiophene Langmuir-Blodgett Films
| العنوان: | Highly Ordered Thin Fims of Polyheterocycles: A Synchrotron Radiation Study of Polypyrrole and Polythiophene Langmuir-Blodgett Films |
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| المؤلفون: | Skotheim, T. A., Yang, X. Q., Cher, J., Hale, P. D., Inagaki, T., Samuelson, L., Tripathy, S. K., Hong, K., Rubner, M. F, DenBoer, M. L., Okamoto, Y. |
| المساهمون: | LOWELL UNIV MA |
| المصدر: | DTIC AND NTIS |
| سنة النشر: | 1989 |
| المجموعة: | Defense Technical Information Center: DTIC Technical Reports database |
| مصطلحات موضوعية: | Industrial Chemistry and Chemical Processing, Physical Chemistry, Polymer Chemistry, THIOPHENES, PYRROLES, THIN FILMS, POLYMERIC FILMS, INTERFACES, LAYERS, POLYMERS, POLYMERIZATION, ORIENTATION(DIRECTION), COPOLYMERS, ORDER DISORDER TRANSFORMATIONS, SUBSTRATES, IRON COMPOUNDS, MIXTURES, CHLORIDES, CHARGE TRANSFER, PLATINUM, AROMATIC COMPOUNDS, AIR WATER INTERACTIONS, ALKYL RADICALS, SYNCHROTRON RADIATION, CHEMICALS, INTERACTIONS, STEARIC ACID, METALS, SYMPOSIA, POLYPYRROLE |
| الوصف: | Langmuir-Blodgett films have been made with 3-n-hexadecylpyrrole and 3-n-octadecylpyrrole monomers and copolymers with unsubstituted pyrrole made by chemical polymerization at the air-water interface on a subphase containing Ferric Chloride. Langmuir-Blodgett films consisting of mixtures of stearic acid and alkylsubstituted polythiophenes have also been made as bilayer films. The orientation of single and multilayer films on platinum substrates have been studied by Near Edge X-ray Absorption Fine Structure Spectroscopy which also gives information about charge transfer interactions between the aromatic groups and the metallic substrates. The alkylsubstituted pyrroles form highly ordered two-dimensional structures. FeCl3 initiated copolymerization with unsubstituted pyrrole leads to a more disordered system. In the case of polythiophene-stearic acid bilayers, the stearic acid layers are highly ordered. The poly(alkyl thiophene) layers sandwiched between stearic acid layers, on the other hand, exhibit random orientation of the thiophene moieties. ; Pub. in Proceedings of ICSM Conference, Santa Fe, NM 1988. |
| نوع الوثيقة: | text |
| وصف الملف: | text/html |
| اللغة: | English |
| العلاقة: | http://www.dtic.mil/docs/citations/ADA210513Test |
| الإتاحة: | http://www.dtic.mil/docs/citations/ADA210513Test http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA210513Test |
| حقوق: | Approved for public release; distribution is unlimited. |
| رقم الانضمام: | edsbas.1EDC99F8 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |