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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/10017

Title: Solid state polymerization of diacetylenes with pi-conjugating substituents for third-order nonlinear optical properties
Authors: SARKAR, A
KODALI, NB
KAMATH, MB
BHAGWAT, LP
TALWAR, SS
Keywords: polydiacetylenes
Issue Date: 1999
Publisher: MARCEL DEKKER INC
Citation: JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, A36(2), 211-224
Abstract: Topochemical reactivity of some conjugated diacetylenes with pi-conjugating substituents upon exposure to gamma-radiation, UV-visible radiation and upon thermal annealing is described. Few of the diacetylenes undergo solid state polymerization to provide corresponding polydiacetylenes. The reflectance spectra of the resultant polydiacetylenes showed significant backbone-side-group electron coupling. The third-order nonlinear susceptibility of two of the polydiacetylenes obtained were evaluated using Maker's fringe technique. The third-order nonlinear susceptibility, chi((3)) value obtained for the two samples were in the order of 10(-11) esu for the fully polymerized polydiacetylene films. These values are comparable to the values reported previously for PDAs with aromatic sidegroups.
URI: http://dx.doi.org/10.1081/MA-100101526
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10017
http://hdl.handle.net/10054/10017
ISSN: 1060-1325
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