In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 33, No. 9R ( 1994-09-01), p. 5051-
Abstract:
3,3'-Diethyloxadicarbocyanine iodide (DODCI)-dissolved polymer powders were formed by coprecipitation of DODCI with polymers [poly(methyl methacrylate) (PMMA), poly(2-hydroxypropyl methacrylate) (PHPMA), etc.]. An acetone solution of DODCI in which a purified polymer was also dissolved was injected into a large amount of n-hexane. The precipitated powder in n-hexane was filtered and then dried under ultrahigh vacuum (UHV), and formed into a thin film by a hot-press method [Hiraga et al. : Chem. Lett. (1990) 2255]. Another method for preparing a powder by coprecipitation has successfully been developed using a vacuum process. The acetone solution of DODCI and polymer was directly injected into UHV from the liquid phase through a modified needle valve. Deposits were formed on a heat-controlled substrate through quick evaporation of a carrier solvent and they were hot-pressed to produce a thin transparent film. Condensed states of DODCI associates in these films have been analyzed by optical absorption and emission, small-angle X-ray scattering (SAXS), and NMR spectroscopy. A new technique to control the arrangement of dye associates in three-dimensional space has been proposed.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.33.5051
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1994
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218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7