Electro-optic properties of a side chain poly(norbornene-dicarboximide) system with an appended phenyl vinylene thiophene chromophore

Polymer ◽  
2017 ◽  
Vol 119 ◽  
pp. 13-27 ◽  
Author(s):  
Andrew M. Spring ◽  
Feng Qiu ◽  
Jianxun Hong ◽  
Alisa Bannaron ◽  
Shiyoshi Yokoyama
Keyword(s):  
2006 ◽  
Vol 2 (6) ◽  
pp. 443-444 ◽  
Author(s):  
Jian-xun Hong ◽  
Jian-ping Chen ◽  
Xin-wan Li ◽  
Wei Chen ◽  
Tao Xie

1999 ◽  
Vol 558 ◽  
Author(s):  
Alex K.-Y. Jen ◽  
Hong Ma

ABSTRACTA versatile, and generally applicable modular approach for making second-order nonlinear optical (NLO) side-chain aromatic polyquinolines has been developed. This approach emphasizes the ease of incorporating NLO chromophores onto the pendent phenyl moieties of parent polyquinolines at the final stage via mild Mitsunobu reaction. This method provides the synthesis of polyquinolines with a broad variation of the polymer backbones and great flexibility in the selection of NLO chromophores. These side-chain NLO polyquinolines demonstrate high electro-optic (E-O) activity (up to 35 pm/V at 830 nm and 22 pm/V at 1300 nm, respectively) and a good combination of thermal, optical, electrical and mechanical properties.Comparatively, two new electroluminescent (EL) polyquinolines have been prepared via the Friedlander condensation and nucleophilic reaction. The resulting polymers contain a bipolar property with both an efficient hole-transporting moiety, tetraphenyldiaminobiphenyl (TPD), and an electron affinitive light-emitting moiety, bis-quinoline. In addition, they possess high thermal stability, excellent electrochemical reversibility, good thin film-forming ability, and bright light-emitting property. Electrical characterization of two-layer diode devices based on the configurations of ITO/CuPc/TPD-PQ or TPD-PQE/Al showed excellent electroluminescence performance (a rectification ratio greater than 105 and a low turn-on voltage of less than 4 V).


2002 ◽  
Vol 725 ◽  
Author(s):  
Seung Koo Park ◽  
Jung Yun Do ◽  
Jung-Jin Ju ◽  
Suntak Park ◽  
Myung-Hyun Lee

AbstractA new host-guest electro optic (EO) polymer, in which a chromophore can be reacted with the polymer main chain during poling to give the corresponding side-chain EO polymer, has been prepared for improving EO effect and its thermal stability. Polyisoimide (PII) synthesized from 2, 2-bis (4-aminophenyl) hexafluoropropane and oxydiphthalic anhydride and Disperse Red 1 (DR1) were used as a host and a guest, respectively. A model compound reaction and Infrared spectra of the host-guest film after annealing at various temperatures show that the reaction between the isoimide groups in PII and the hydroxyl groups in DR1 occurs around 140 °C. The glass transition temperatures of the resulting EO polyamic aicd ester-imide copolymer with 0, 10, 20 and 30 wt. % of chromophore concentration were 275, 219, 160, and 124 °C, respectively. The EO coefficient obtained at a wavelength of 1.55 νm was 5.3 and 10.5 pm/V from the EO polymer film with 20 and 30 wt. % DR1. The EO signals exhibited only a slight decay at high temperature due to the chemical reaction between the host and guest during poling.


Polymer ◽  
2001 ◽  
Vol 42 (18) ◽  
pp. 7749-7754 ◽  
Author(s):  
W.N Leng ◽  
Y.M Zhou ◽  
Q.H Xu ◽  
J.Z Liu

2007 ◽  
Vol 249-250 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Hyun Kyung Ju ◽  
Jong Sun Lim ◽  
Sung Cheol Yoon ◽  
Changjin Lee ◽  
Dong Hoon Choi ◽  
...  

2004 ◽  
Vol 13 (03n04) ◽  
pp. 439-443
Author(s):  
JUNG YUN DO ◽  
SEUNG KOO PARK ◽  
SUNTAK PARK ◽  
JUNG JIN JU ◽  
MIN-SU KIM ◽  
...  

Hyper-branched chromophores were developed and attached to a polyimide backbone. The chromophore structures led to increasing chromophore concentration in polymers. Electro-optic coefficients were measured to investigate the effect of various chromophore concentrations in side chain polymers. Thermal and electric stabilities of poled polymer films were correlated with the hyper-branched structures.


Sign in / Sign up

Export Citation Format

Share Document