Abstract
The synthesis and properties of six hydrazone-functionalized crosslinked polymers possessing stable nonlinear optics (NLO) properties are presented. First, a series of six hydroxy-functionalized, NLO-active hydrazone chromophores were synthesized. These chromophores were then grafted via its hydroxy functionality on an epoxy polymer to obtain the six NLO-active soluble prepolymers. The grafting reaction yielded multiple secondary hydroxyl sites, which were used for further crosslinking by formulation of the prepolymer with a blocked polyisocyanate crosslinker. This formulation was spin-coated on glass slides to form 2-2.5 μ thick defect-free transparent films. The films were corona-poled above their glass-transition temperatures to align the chromophores in a noncentrosymmetric fashion and were simultaneously cured. The thermal characteristics of the second-order nonlinearity of the six polymers were compared to illustrate the key structure-property relationships underlying the performance of the films in terms of NLO activity and thermal stability.
Original language | English (US) |
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Pages (from-to) | 770-781 |
Number of pages | 12 |
Journal | Journal of Applied Polymer Science |
Volume | 92 |
Issue number | 2 |
DOIs | |
State | Published - Apr 15 2004 |
ASJC Scopus subject areas
- Chemistry(all)
- Surfaces, Coatings and Films
- Polymers and Plastics
- Materials Chemistry