Allcock, Harry R.; Dembek, Alexa A.; Kim, Chulhee; Devine, Robert L. S.; Shi, Yongqiang; Steier, William H.; Spangler, Charles W. published the artcile< Second-order nonlinear optical poly(organophosphazenes): synthesis and nonlinear optical characterization>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is polyorganophosphazene fluoropolymer nonlinear optical property.
The preparation and 2nd-order nonlinear optical properties of a series of fluoropolymer-poly(organophosphazenes) containing covalently attached donor-acceptor-substituted conjugated moieties were reported. The polymers had the general structure [NP(OCH2CF3)x(OR)y]n, where OR = O(CH2CH2O)kC6H4(CH=CH)mC6H4NO2, where k = 1-3 and m = 1-3, O(CH2CH2O)3C6H4CH=CHC6H4CN, OCH2CH2NMeC6H4NO2, or OCH2CH2NEtC6H4N=NC6H4NO2. Model compound studies were done using the cyclic trimers N3P3(OPh)5(OR) and N3P3(OCH2CF3)5(OR), where R = (CH2CH2O)3C6H4CH=CHC6H4NO2. Structural characterization of the polymers was done using 1H- and 31P-NMR, IR and UV spectroscopies, gel permeation chromatog., and thermal anal. The 2nd-order nonlinear optical properties of polymer films were evaluated by 2nd-harmonic generation. Alignment of the nonlinear optical groups was achieved by application of an elec. field by a corona discharge. The 2nd-order nonlinear coefficient, d33, of the polymer films was determined by a Maker fringe anal. of the data and was 4.1-34 pm/V. The 2nd-harmonic generation behavior decayed upon removal of the elec. field. The variation in d33 correlated to the polymer composition and structure.
Macromolecules published new progress about Fluoropolymers, polyphosphazene- Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics