TY - JOUR
T1 - Poled, Chromophore-Functionalized Polymeric Nonlinear Optical Materials. Probing Second Harmonic Generation Temporal Characteristics Via Site-Selective Crosslinking/Hydrogen Bonding
AU - Jin, Yi
AU - Carr, H.
AU - Marks, Tobin J.
AU - Lin, Weiping
AU - Wong, George K.
PY - 1992/2/1
Y1 - 1992/2/1
N2 - Appending high-β chromophores to glassy macromolecules represents an advance in NLO materials1 design in that chromophore number densities are greatly enhanced and structural disorientation/physical aging processes subsequent to cessation of electric field poling are impeded.2, 3 Further enhancements in the SHG (second harmonic generation) temporal stability of such materials can be achieved by effecting thermal cross-linking/vitrification of the matrix in concert with the poling process.2a, 4, 5Nevertheless, optimum architectural strategies for such cross-linking processes, either chemical or hydrogen hydrogen-bonding, have not been systematically addressed. We report here modifications of our previously investigated poly(p-hydroxystyrene)-N-(4-nitrophenyl)-(S)-prolinol (NPP-PHS) chromophore-functionalized polymer system, 2c, d which afford the first opportunity to probe SHG temporal stability as a function of cross-link/hydrogenbond location (I).
AB - Appending high-β chromophores to glassy macromolecules represents an advance in NLO materials1 design in that chromophore number densities are greatly enhanced and structural disorientation/physical aging processes subsequent to cessation of electric field poling are impeded.2, 3 Further enhancements in the SHG (second harmonic generation) temporal stability of such materials can be achieved by effecting thermal cross-linking/vitrification of the matrix in concert with the poling process.2a, 4, 5Nevertheless, optimum architectural strategies for such cross-linking processes, either chemical or hydrogen hydrogen-bonding, have not been systematically addressed. We report here modifications of our previously investigated poly(p-hydroxystyrene)-N-(4-nitrophenyl)-(S)-prolinol (NPP-PHS) chromophore-functionalized polymer system, 2c, d which afford the first opportunity to probe SHG temporal stability as a function of cross-link/hydrogenbond location (I).
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:A1992JQ59000002
UR - https://openalex.org/W2050349422
U2 - 10.1021/cm00023a002
DO - 10.1021/cm00023a002
M3 - Journal Article
SN - 0897-4756
VL - 4
SP - 963
EP - 965
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 5
ER -