Abstract
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).
Original language | English (US) |
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Pages (from-to) | 963-965 |
Number of pages | 3 |
Journal | Chemistry of Materials |
Volume | 4 |
Issue number | 5 |
DOIs | |
State | Published - Feb 1 1992 |
ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
- Materials Chemistry