Effects of main chains on the second order nonlinear optical susceptibility of poled poly(dipropargyloxybenzoates) containing 2-[4-(2-chloro-4-nitrophenylazo)-N-ethyl-phenylamino]ethanol (Disperse Red 13)

Pérez-Martínez, Ana Laura; Ogawa, Teiichiro; Aoyama, Tetsuya; Wada, Takehiko

doi:10.1016/j.optmat.2008.10.035

Cited by 6 publications

(1 citation statement)

References 15 publications

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“…Besides thermal cross-linking property, highly reactive propargyl ether-terminated monomers can be used in the preparation of diacetylene-containing polymers by means of oxidative coupling chemistry under oxygen atmosphere with copper (I) chloride (CuCl) as the catalyst. [33][34][35][36] These obtained polymers can similarly undergo cross-linked polymerization under ultraviolet irradiation or by annealing at a definite temperature, and they exhibit enhanced mechanical properties and thermostability because of the volume contraction in the covalent coupling of adjacent diacetylene units. [35][36][37][38][39][40] In recent years, several correlative research studies have been reported on the synthesis and characteristics of diacetylene-containing polymers, for example, thermal properties and mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

Thermal properties of diacetylene–containing polymer prepared from propargyl-terminated monomer with pyridine

Yang

Jiang

et al. 2016

High Performance Polymers

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A novel diacetylene-containing main chain-type polymer, poly[2,6-bis(4-propargyl-oxy-benzoyl)pyridine] (P 1 ), was synthesized via oxidative coupling reaction with a new propargyl-terminated monomer, 2,6-bis(4-propargyl-oxy-benzoyl)pyridine (M 1 ), which was incorporated a substituted pyridine into the molecular chain of model monomer, 4,4 0 -bis(propargyl-oxy)benzophenone (M 0 ). The structures of the new monomer and the resulting polymer were verified by Fourier transform infrared and proton nuclear magnetic resonance spectroscopies. Differential scanning calorimetry was used to investigate the curing behaviors of M 1 and P 1 . The onset curing temperature of M 1 was 199.0 C, and the exothermic enthalpy of M 1 was 973.4 J g À1 , while the initial curing temperature for polymer P 1 reduced by 48 C and the exothermic enthalpy was almost half. Thermogravimetric analysis (TGA) showed the excellent thermal stabilities of M 1 and its polymer in argon atmosphere (the decomposition temperatures at 5% weight loss were 446 C for M 1 and 370 C for P 1 and their char yields at 800 C exceeded 71%). The above TGA data were superior to that of the model monomer (M 0 ) and its polymer (P 0 ) under the same conditions.

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