scholarly journals Novel Conjugated Polymer Containing Aromatic Ring and Selenium in Backbone. Kinetics of the Addition Reaction as the Model for Addition Polymerization

1995 ◽  
Vol 27 (2) ◽  
pp. 156-164 ◽  
Author(s):  
Nobuki Metaka ◽  
Eiichi Kobayashi ◽  
Sadahito Aoshima ◽  
Junji Furukawa
Keyword(s):  
Aromatic Ring ◽  
Conjugated Polymer ◽  
Addition Reaction ◽  
Addition Polymerization ◽  
Kinetics Of

scholarly journals Synthesis and characterization of a new conjugated polymer containing bithiazole group and its thermal decomposition kinetics

2020 ◽  
Vol 39 (2) ◽  
pp. 227
Author(s):  
Adnan Kurt ◽  
Hacer Andan ◽  
Murat Koca
Keyword(s):  
Thermal Decomposition ◽  
Heating Rate ◽  
Conjugated Polymer ◽  
Three Dimensional ◽  
Heating Rates ◽  
Diffusion Type ◽  
Optimum Heating ◽  
Rate Loss ◽  
Kinetics Of

A new conjugated polymer containing a bithiazole group is prepared by the polycondensation of 2,2'-diamino-4,4'-bithiazole and terephthaldialdehyde in the presence of glacial acetic acid. The kinetics of thermal degradation of the new polymer are investigated by thermogravimetric analysis at different heating rates. The temperature corresponding to the maximum rate loss shifts to higher temperatures with increasing heating rate. The thermal decomposition activation energies of the conjugated polymer in a conversion range of 3–15 % are 288.4 and 281.1 kJ/mol by the Flynn–Wall–Ozawa and Kissinger methods, respectively. The Horowitz–Metzger method shows that the thermodegradation mechanism of the conjugated polymer proceeds over a three-dimensional diffusion type deceleration D3 mechanism. The optimum heating rate is 20 ºC/min.

scholarly journals Detection of L-Proline-Catalyzed Michael Addition Reaction in Model Biomembrane

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Masanori Hirose ◽  
Shigenori Sugisaki ◽  
Keishi Suga ◽  
Hiroshi Umakoshi
Keyword(s):  
Michael Addition ◽  
Reaction Rate ◽  
Phase State ◽  
Addition Reaction ◽  
Michael Addition Reaction ◽  
Membrane Systems ◽  
Liposome Membrane ◽  
Reaction Rate Constants ◽  
Plausible Model ◽  
Kinetics Of

A method to detect the L-proline- (L-Pro-) catalyzed Michael addition reaction in model biomembranes has been established, using N-[p(2-benzimidazolyl)phenyl]maleimide and acetone as reactants. The effect of liposome membranes on this reaction was kinetically analyzed using fluorescence spectroscopy. The kinetics of the reaction were different from those of the constituent lipids of the liposomes. Zwitterionic 1,2-dipalmitoyl-sn-glycero-3-phosphocholine liposome, which is in the solid-ordered phase, had a better value of reaction rate, suggesting that the reaction rate constants of this reaction in liposome membrane systems could be regulated by the characteristics of the liposome membrane (i.e., the phase state and surface charge). Based on the results obtained, a plausible model of the L-Pro-catalyzed Michael addition reaction was discussed. The obtained results provide us with an easily detectable method to assess the reactivity of L-Pro in biological systems.

An efficient strategy for the synthesis of 5-hydroxymethylfurfural derivative based poly(β-thioether ester) via thiol-Michael addition polymerization

RSC Advances ◽  
2016 ◽  
Vol 6 (86) ◽  
pp. 83466-83470 ◽  
Author(s):  
Daihui Zhang ◽  
Marie-Josée Dumont ◽  
Alice Cherestes
Keyword(s):  
Michael Addition ◽  
Addition Reaction ◽  
Michael Addition Reaction ◽  
Efficient Strategy ◽  
Addition Polymerization ◽  
Michael Addition Polymerization

A derivative of 5-hydroxymethylfurfural was synthesized for the thiol-Michael addition reaction.

scholarly journals Polyaddition of Dithiol Compounds to Diethynyl Compounds: Kinetics of the Model Addition Reaction of Thiophenol to Ethynylbenzene

1990 ◽  
Vol 22 (12) ◽  
pp. 1035-1042 ◽  
Author(s):  
Eiichi Kobayashi ◽  
Takatsugu Obata ◽  
Sadahito Aoshima ◽  
Junji Furukawa
Keyword(s):  
Addition Reaction ◽  
Kinetics Of

Interfacial kinetics of a model epoxy–amine addition reaction

2012 ◽  
Vol 14 (39) ◽  
pp. 13532 ◽  
Author(s):  
Tomoyasu Hirai ◽  
Kaoru Kawasaki ◽  
Keiji Tanaka
Keyword(s):  
Addition Reaction ◽  
Interfacial Kinetics ◽  
Epoxy Amine ◽  
Amine Addition ◽  
Kinetics Of
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