DTIC ADA280210: Organic NonLinear Optical Polymers. 6 pdf

DTIC ADA280210: Organic NonLinear Optical Polymers. 6

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This paper describes preliminary work exploring the feasibility of preparing high-performance NLO-materials based on the poly(p-phenylene) (PPP) backbone. Three new monomer/NLO-phores of the general formula: 4- RS02C6H4C(triple bonds)C(4-XC6H4) where R = 2,5-dichlorophenyl; 2a, X = H; 2b, X= OMe; 2c, X= NMe2 were synthesized and then homopolymerized using catalytic nickel and stoichiometric zinc to produce the poly(p-phenylenes), 3a-c, respectively, as low molecular weight materials (M sub n = 1800-6000). Both NLO- phores (2b-c ) dispersed in PMMA displayed good SHG signal stability at ambient temperature (approx. 12% loss/100 h). The oligomeric materials dispersed in PMMA showed a lower magnitude of X(2) or no NLO signal. Attempts to induce dipolar asymmetry in the homopolymers 3b and 3c by corona poling were unsuccessful. NonLinear optical, Corona poling, High performance polymers, Polyphenylene

• Creator/s: Defense Technical Information Center
• Date: 5/28/1994
• Year: 1994
• Book Topics/Themes: DTIC Archive, Wright, Michael E, UTAH STATE UNIV LOGAN DEPT OF CHEMISTRY AND BIOCHEMISTRY, *POLYMERS, *NONLINEAR OPTICS, *ORGANIC COMPOUNDS, *POLYPHENYLENES, TEMPERATURE, STABILITY, COMPOSITE MATERIALS, POLYMETHYL METHACRYLATE, SIGNALS, MONOMERS, CORONAS, OLIGOMERS, STOICHIOMETRY, NICKEL, CATALYSTS, ZINC, WEIGHT, ASYMMETRY, ELECTRIC FIELDS, MOLECULAR WEIGHT, SECOND HARMONIC GENERATION, MATERIALS

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