Donor-Embedded Nonlinear Optical Side Chain Polyimides Containing No Flexible Tether: Materials of Exceptional Thermal Stability for Electrooptic Applications

Miller, R. D.; Burland, D. M.; Jurich, M.; Lee, V. Y.; Moylan, Christopher R.; Thackara, J. I.; Twieg, Robert J.; Verbiest, Thierry; Volksen, W.

doi:10.1021/ma00118a026

Cited by 105 publications

(66 citation statements)

References 3 publications

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“…Exceptionally high thermally stable polyimides were described by Verbiest 102,104) and Miller et al 103) The polymer Pe was shown to have a chemical stability up to temperatures of 350 8C for several hours, whereas the glass transition temperature was l350 8C. Pf on the other hand decomposes at a much lower temperature of 275 8 under the same experimental conditions.…”

Section: High Glass Transition Polymersmentioning

confidence: 83%

Second-order non-linear optical polymers

Samyn

Verbiest

Persoons

2000

Macromol. Rapid Commun.

122

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In this article we discuss the state of the art in the field of second‐order non‐linear optical polymers. More specifically, we highlight those results that we think made an important contribution to the field, combined with some of our own results. We start with a general overview of all the aspects involved in characterizing second‐order non‐linear optical polymers, from thin film formation and poling to second‐harmonic generation and electro‐optic measurements on such systems. Next, we review the second‐order non‐linear optical properties of selected polymer systems such as poly(vinyl ether)s, polystyrenes, polymethacrylates, main‐chain polymers and high Tg polymers like polyimides and polymaleimides. Finally, we discuss some new polymer systems that might become important in the field of non‐linear optics in the near future.

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Section: High Glass Transition Polymersmentioning

confidence: 83%

Second-order non-linear optical polymers

Samyn

Verbiest

Persoons

2000

Macromol. Rapid Commun.

122

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“…These NLO polymers could be acquired by doping NLO chromophores into amorphous polymer matrices (guest-host systems) [3] or covalently incorporating NLO moiety onto polymer backbone. [4][5][6] NLO-phores with extended p-conjugated bridge functionalized with strong electron donors and acceptors can exhibit extremely large first hyperpolarizability, b. A variety of organic chromophores containing conjugated systems such as polyenes, [7,8] thiophene, [9 -12] stilbene, [13 -16] and azobenzene [4,17,18] compounds as well as terminal donor and acceptor groups, [19][20][21][22] have been investigated to exhibit large optical nonlinearity.…”

Section: Introductionmentioning

confidence: 99%

All Organic NLO Sol-Gel Material Containing a One-Dimensional Carbazole Chromophore

Kuo

Hsiue²,

Jeng

2001

Macromol. Chem. Phys.

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A NLO‐active polymer has been developed via combining chromophoric photorefractive characteristics and film optical quality of melamine network. A carbazole‐containing NLO‐phore can be acquired via a facile synthetic route, namely Knoevenagel condensation. Guest‐host prepolymer was obtained by doping the chromophores into benzoguanamine matrix. After poling and curing process, a NLO‐active organic sol‐gel material with large second‐order nonlinearity and excellent optical quality film has been achieved. Thermal stability of the polymer was analyzed via DSC and TGA. UV‐vis spectra and second harmonic generation measurement were utilized to characterize the linear and nonlinear optical properties. Reorientation dynamic stability was used to study temperature dependence of NLO signal. The d33 and d31 values for the polymer are 19 pm/V and 9 pm/V, respectively. Long‐term NLO stability was investigated by measuring effective second harmonic (SH) coefficient as a function of time. The effective SH coefficient retained 47% of its original value and leveled off after 10 h of thermal ageing at 80°C.

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“…The NLO polyimides exhibiting high orientation stability were prepared by using diamines containing NLO chromophores 7,8 and through the introduction of chromophores to poly(hydroxyimide)s. 9 -12 The magnitude of the macroscopic nonlinear effect is determined by the number density of chromophores within the polymers. Thus, the former approach should be reliable for the introduction of chromophores in every repeating unit.…”

Section: Introductionmentioning

confidence: 99%