scholarly journals Enzymatic synthesis of unsaturated polyesters: functionalization and reversibility of the aza-Michael addition of pendants

2019 ◽  
Vol 10 (7) ◽  
pp. 843-851 ◽  
Author(s):  
Alessandro Pellis ◽  
Polly Ann Hanson ◽  
James W. Comerford ◽  
James H. Clark ◽  
Thomas J. Farmer
Keyword(s):  
Michael Addition ◽  
Enzymatic Synthesis ◽  
Temperature Dependent ◽  
Unsaturated Polyesters ◽  
Diethyl Amine

Enzymatic synthesis of unsaturated polyesters and the temperature-dependent reversibility of the aza-Michael addition of diethyl amine pendants.

scholarly journals Assessment of TEMPO as a thermally activatable base generator and its use in initiation of thermally-triggered thiol-Michael addition polymerizations

2018 ◽  
Vol 9 (32) ◽  
pp. 4294-4302 ◽  
Author(s):  
Xinpeng Zhang ◽  
Sijia Huang ◽  
Maciej Podgórski ◽  
Xun Han ◽  
Mauro Claudino ◽  
...  
Keyword(s):  
Michael Addition ◽  
Michael Reaction ◽  
Reduction Reaction ◽  
Temperature Dependent ◽  
Tempo Oxidation ◽  
Oxidation Reduction ◽  
Oxidation Reduction Reaction ◽  
Thermally Triggered

We present a thermally initiated thiol-Michael reaction based on initiation via the temperature-dependent thiol-TEMPO oxidation–reduction reaction.

scholarly journals Post-polymerisation modification of bio-derived unsaturated polyester resins via Michael additions of 1,3-dicarbonyls

2016 ◽  
Vol 7 (8) ◽  
pp. 1650-1658 ◽  
Author(s):  
T. J. Farmer ◽  
J. H. Clark ◽  
D. J. Macquarrie ◽  
J. K. Ogunjobi ◽  
R. L. Castle
Keyword(s):  
Michael Addition ◽  
Unsaturated Polyester ◽  
Polyester Resins ◽  
Unsaturated Polyesters ◽  
Unsaturated Polyester Resins ◽  
Michael Additions ◽  
First Time ◽  
The Michael Addition

A rapid (5 min), solventless and heterogeneously catalysed methodology is demonstrated for the first time for the Michael addition of 1,3-dicarbonyls to biomass derived unsaturated polyesters.

Bio-activated intramolecular anti-aza-Michael addition: stereoselective synthesis of hydantoin derivatives

2018 ◽  
Vol 42 (22) ◽  
pp. 18348-18357 ◽  
Author(s):  
Vedamurthy M. Bhusainahalli ◽  
Antonio Rescifina ◽  
Nunzio Cardullo ◽  
Carmela Spatafora ◽  
Corrado Tringali
Keyword(s):  
Michael Addition ◽  
Enzymatic Synthesis ◽  
Stereoselective Synthesis ◽  
Hydantoin Derivatives

The unprecedented green, stereoselective, and enzymatic synthesis of biologically remarkable hydantoin derivatives through an intramolecular anti-aza-Michael addition.

Post-polymerization modification of unsaturated polyesters by Michael addition of N-heterocyclic carbenes

2017 ◽  
Vol 49 (5) ◽  
pp. 423-428 ◽  
Author(s):  
Shin-ichi Matsuoka ◽  
Yuya Kamijo ◽  
Masato Suzuki
Keyword(s):  
Michael Addition ◽  
Heterocyclic Carbenes ◽  
Unsaturated Polyesters

Poly(alkylene itaconate)s – an interesting class of polyesters with periodically located exo-chain double bonds susceptible to Michael addition

2015 ◽  
Vol 6 (11) ◽  
pp. 2108-2114 ◽  
Author(s):  
Sananda Chanda ◽  
S. Ramakrishnan
Keyword(s):  
Amino Acids ◽  
Michael Addition ◽  
Double Bonds ◽  
Unsaturated Polyesters ◽  
Interesting Class ◽  
Organic Thiols

Dibutyl itaconate, a bio-sourced monomer, is melt-condensed with various aliphatic diols to generate unsaturated polyesters carrying exo-chain double bonds; these exo-chain double bonds readily undergo Micheal addition with a variety of organic thiols and amines, including some derviatized amino acids, like cysteine and proline.

(111) Monocrystalline Nickel Films

1972 ◽  
Vol 30 ◽  
pp. 512-513
Author(s):  
T.E. Pratt ◽  
R.W. Vook
Keyword(s):  
Film Thickness ◽  
Deposition Rate ◽  
Room Temperature ◽  
Narrow Range ◽  
High Vacuum ◽  
Residual Pressure ◽  
Temperature Dependent ◽  
Deposition Parameters ◽  
Transmission Electron ◽  
Substrate Temperatures

(111) oriented thin monocrystalline Ni films have been prepared by vacuum evaporation and examined by transmission electron microscopy and electron diffraction. In high vacuum, at room temperature, a layer of NaCl was first evaporated onto a freshly air-cleaved muscovite substrate clamped to a copper block with attached heater and thermocouple. Then, at various substrate temperatures, with other parameters held within a narrow range, Ni was evaporated from a tungsten filament. It had been shown previously that similar procedures would yield monocrystalline films of CU, Ag, and Au.For the films examined with respect to temperature dependent effects, typical deposition parameters were: Ni film thickness, 500-800 A; Ni deposition rate, 10 A/sec.; residual pressure, 10-6 torr; NaCl film thickness, 250 A; and NaCl deposition rate, 10 A/sec. Some additional evaporations involved higher deposition rates and lower film thicknesses.Monocrystalline films were obtained with substrate temperatures above 500° C. Below 450° C, the films were polycrystalline with a strong (111) preferred orientation.

Temperature-dependent translational regulation of the ER omega-3 fatty acid desaturase gene in wheat root tips

2000 ◽  
Vol 24 (6) ◽  
pp. 805-813 ◽  
Author(s):  
Gorou Horiguchi ◽  
Takuichi Fuse ◽  
Naoto Kawakami ◽  
Hiroaki Kodama ◽  
Koh Iba
Keyword(s):  
Fatty Acid ◽  
Translational Regulation ◽  
Fatty Acid Desaturase ◽  
Wheat Root ◽  
Omega 3 ◽  
Root Tips ◽  
Temperature Dependent ◽  
Desaturase Gene ◽  
Omega 3 Fatty Acid ◽  
Fatty Acid Desaturase Gene
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