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A Study on the Synthesis of Bis - (2 - Methyl-- 4 - Nitroaniline) - Butadiyne and Its Polymer
Pages: 59-65
Year: Issue:  S3
Journal: Transactions of Beijing Institute of Technology

Keyword:  organic syntheses /polydiacetylenic derivativessolid - state polymerizationnonlinear optical materials .;
Abstract: The syntheses and structural determinations of MNA and MBD are reported . The new method of preparation for MNA compounds shows a high yield, fewer by-products and easy purification. with the solid-state polymerization by - thermal annealing , diacetylenic monomer MBD single crystal , which crystallizes in a benzene /ether solvent, is converted to polymeric single crystal. In the polymerization process, there exist induced eflFects and the phenomenon of auto - acceleration. The molecular structure of the compounds mentioned above belong to π electron conjugated system with donor and acceptor groups . They demonstrate high second - order nonlinear optical hyperpolarizability values and show vast vistas in the nonlinear optics .
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