scholarly journals Pentablock Copolymer from Tetracomponent Monomer Mixture Using a Switchable Dizinc Catalyst

2018 ◽  
Vol 51 (14) ◽  
pp. 5346-5351 ◽  
Author(s):  
Thomas T. D. Chen ◽  
Yunqing Zhu ◽  
Charlotte K. Williams
Keyword(s):  
Monomer Mixture ◽  
Pentablock Copolymer

Pattern writing in a liquid-crystal-monomer mixture using two-photon polymerization

2013 ◽  
Author(s):  
Chandroth P. Jisha ◽  
Kuei-Chu Hsu ◽  
YuanYao Lin ◽  
Ja-Hon Lin ◽  
Chien-Chung Jeng ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Monomer Mixture ◽  
Two Photon ◽  
Two Photon Polymerization

pH-Sensitive Pentablock Copolymer Nanocapsules as Nontoxic and Efficient Gene Carriers

2011 ◽  
Vol 11 (6) ◽  
pp. 789-796 ◽  
Author(s):  
Min Sang Lee ◽  
Yeon Lim Jang ◽  
Dai Phu Huynh ◽  
Cong Truc Huynh ◽  
Yuhan Lee ◽  
...  
Keyword(s):  
Ph Sensitive ◽  
Gene Carriers ◽  
Efficient Gene ◽  
Pentablock Copolymer

Electrochemically Synthesis and Characterization of Copolymers Based on 1, 4-Diethoxybenzene and 3, 4-Ethylenedioxythiophene

2011 ◽  
Vol 335-336 ◽  
pp. 989-993
Author(s):  
Mi Ouyang ◽  
Zhen Wei Yu ◽  
Yi Xu ◽  
Yu Jian Zhang ◽  
Cheng Zhang
Keyword(s):  
Cyclic Voltammetry ◽  
Ir Spectroscopy ◽  
Feed Ratio ◽  
Synthesis And Characterization ◽  
Monomer Mixture ◽  
Long Wavelength ◽  
H Nmr ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Copolymers based on 1, 4-diethoxybenzene (DEB) and 3, 4-ethylenedioxythiophene (EDOT) were electrochemically synthesized and characterized. The structures of the copolymers were established by 1H NMR and FT-IR spectroscopy. The results indicated the final product was a copolymer instead of a blend or a composite. The physical properties were systematically investigated by cyclic voltammetry, UV-vis absorption and fluorescence. The PL maximum of copolymers presented obviously red-shift to long wavelength as the feed ratio of EDOT in monomer mixture increased.

Distribution of chemical composition of statistical copolymers from the conversion dependences of copolymer or residual monomer mixture composition

1986 ◽  
Vol 19 (6) ◽  
pp. 1575-1580 ◽  
Author(s):  
Jaroslav Stejskal ◽  
Pavel Kratochvil ◽  
Dagmar Strakova ◽  
Ondrej Prochazka
Keyword(s):  
Chemical Composition ◽  
Mixture Composition ◽  
Monomer Mixture ◽  
Residual Monomer

Studies on Soluble Fibrin Complexes as a Function of pH

1975 ◽  
Author(s):  
Y. Benabid ◽  
E. Concord ◽  
M. Suscillon
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Gel Electrophoresis ◽  
Gel Chromatography ◽  
Agarose Gel ◽  
Monomer Mixture ◽  
Soluble Fibrin ◽  
Molecular Weights ◽  
Fibrin Monomer

Purified fibrinogen solutions, incubated with thrombin. CNBr. Sepharose, were subjected to agarose gel chromatography and eluted at different pH (6.5; 7.5; 8.5). Among high molecular weight derivatives formed by thrombin, the major component was a dimer. Gel chromatography at pH 8.5 showed a complexes peak distinct of that from fibrinogen, whereas at pH 6.5, only the fibrinogen peak appeared: fibrin monomer was eluted with fibrinogen as demonstrated by polyacrylamid gel electrophoresis 3.75% pH 8.9. SDS urea electrophoresis after reduction indicated that complexes peak contained two α-chains (α and α′). When fibrinogen was incubated with thrombin in the presence of FSF and calcium, several derivatives with higher and higher molecular weights were formed besides the dimer, and elution profiles of chromatography were identical at pH 6.5 and 8.5, thus indicating stable complexes formation. If fibrinogen-fibrin monomer mixture was subjected to FSF action at different pH, no complexes were formed at pH 6.5. These results confirm that at pH 6.5, any association was prevented.

Controlled release of insulin from pH/temperature-sensitive injectable pentablock copolymer hydrogel

2009 ◽  
Vol 137 (1) ◽  
pp. 20-24 ◽  
Author(s):  
Dai Phu Huynh ◽  
Guang Jin Im ◽  
Su Young Chae ◽  
Kang Choon Lee ◽  
Doo Sung Lee
Keyword(s):  
Controlled Release ◽  
Temperature Sensitive ◽  
Copolymer Hydrogel ◽  
Pentablock Copolymer
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