Synthesis and Characterization of Benzyl Methacrylate/Styrene Random Copolymers Prepared by NMP

2010 ◽  
Vol 4 (6-7) ◽  
pp. 415-423 ◽  
Author(s):  
Chi Zhang ◽  
Benoit Lessard ◽  
Milan Maric
Keyword(s):  
Random Copolymers ◽  
Synthesis And Characterization

Synthesis and characterization of polycarbonate- co -poly(valeric methyl ester) random copolymers

2016 ◽  
Vol 180 ◽  
pp. 170-174 ◽  
Author(s):  
Hohyoun Jang ◽  
Hyunho Joo ◽  
Sabuj Chandra Sutradhar ◽  
Nipa Banik ◽  
Jaeseong Ha ◽  
...  
Keyword(s):  
Methyl Ester ◽  
Random Copolymers ◽  
Synthesis And Characterization

Synthesis and characterization of new 4-vinylsilylbenzocyclobutene/vinylsilylbenzene random copolymers

2012 ◽  
Vol 24 (2) ◽  
pp. 112-118 ◽  
Author(s):  
Junxiao Yang ◽  
Shangchun Liu ◽  
Fanghua Zhu ◽  
Yawen Huang ◽  
Bo Li ◽  
...  
Keyword(s):  
Random Copolymers ◽  
Synthesis And Characterization

Synthesis and characterization of ethylene–propylene random copolymers with isotactic propylene sequence

Polymer ◽  
2001 ◽  
Vol 42 (23) ◽  
pp. 9611-9615 ◽  
Author(s):  
Yong-Woo Shin ◽  
Toshiya Uozumi ◽  
Minoru Terano ◽  
Koh-hei Nitta
Keyword(s):  
Random Copolymers ◽  
Synthesis And Characterization ◽  
Ethylene Propylene

Synthesis and Characterization of Highly Twisted and Bulky Tetraoctyloxybiphenyl-Containing Polyfluorene Copolymers: Toward Efficient Blue Polymer Light Emitting Diodes

2007 ◽  
Vol 7 (11) ◽  
pp. 3810-3814
Author(s):  
In-Nam Kang ◽  
Sung-Hwan Lim ◽  
Jong-Wook Park ◽  
Kyoung-Soo Kim ◽  
Min-Chul Chung ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Blue Emission ◽  
Random Copolymers ◽  
Synthesis And Characterization ◽  
Coupling Reactions ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes ◽  
Pl Emission

We have synthesized new blue light emitting random copolymers, poly(9,9′-n-dioctylfluorene-co-2,2′,6,6′-tetraoctyloxybiphenyl-3,3′-diyl)s (PFTOBPs), via Ni(0)-mediated coupling reactions. The PL emission peaks of the resulting copolymers closely resembled those of the polyfluorene (PF) homopolymer. The EL devices fabricated using these copolymers exhibited highly pure blue emission with approximate 1931 CIE coordinates of (0.15, 0.15) at 1000 cd/m2. The maximum brightnesses ranged from 2000 to 12000 cd/m2 with maximum efficiencies from 0.53 to 0.97 cd/A. The efficiencies were found to increase as the fraction of TOBP in the copolymers was increased, which may result the inhibition of exciton quenching that is produced by the introduction of the highly twisted and bulky TOBP moieties into the copolymers.

Synthesis and Characterization of Highly Twisted and Bulky Tetraoctyloxybiphenyl-Containing Polyfluorene Copolymers: Toward Efficient Blue Polymer Light Emitting Diodes

2007 ◽  
Vol 7 (11) ◽  
pp. 3810-3814 ◽  
Author(s):  
In-Nam Kang ◽  
Sung-Hwan Lim ◽  
Jong-Wook Park ◽  
Kyoung-Soo Kim ◽  
Min-Chul Chung ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Blue Emission ◽  
Random Copolymers ◽  
Synthesis And Characterization ◽  
Coupling Reactions ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes ◽  
Pl Emission

We have synthesized new blue light emitting random copolymers, poly(9,9′-n-dioctylfluorene-co-2,2′,6,6′-tetraoctyloxybiphenyl-3,3′-diyl)s (PFTOBPs), via Ni(0)-mediated coupling reactions. The PL emission peaks of the resulting copolymers closely resembled those of the polyfluorene (PF) homopolymer. The EL devices fabricated using these copolymers exhibited highly pure blue emission with approximate 1931 CIE coordinates of (0.15, 0.15) at 1000 cd/m2. The maximum brightnesses ranged from 2000 to 12000 cd/m2 with maximum efficiencies from 0.53 to 0.97 cd/A. The efficiencies were found to increase as the fraction of TOBP in the copolymers was increased, which may result the inhibition of exciton quenching that is produced by the introduction of the highly twisted and bulky TOBP moieties into the copolymers.

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