New rigid vinyl compound molding technology

1996 ◽  
Vol 2 (2) ◽  
pp. 129-133 ◽  
Author(s):  
James W. Summers ◽  
Paul Toyoda ◽  
Scott Weir ◽  
Chris Beal ◽  
Carl Toensing
Keyword(s):  
Vinyl Compound

scholarly journals DISCOVER: A facile structure-based screening method for vinyl compound producing microbes

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yuji Aso ◽  
Mei Sano ◽  
Hikari Kuroda ◽  
Hitomi Ohara ◽  
Hiroshi Ando ◽  
...  
Keyword(s):  
Heck Reaction ◽  
Aspergillus Terreus ◽  
Agar Medium ◽  
Screening Method ◽  
Coupling Reactions ◽  
Ene Reaction ◽  
Vinyl Compound ◽  
Novel Structure ◽  
Iodine Test ◽  
Microbial Screening

Abstract Here we report a novel structure-based microbial screening method for vinyl compound discovery, DISCOVER (direct screening method based on coupling reactions for vinyl compound producers). Through a two-step screening procedure based on selective coupling reactions of terminal alkenes, the thiol-ene reaction (1st step of screening) and Mizoroki-Heck reaction, followed by iodine test (2nd step of screening), microbes producing vinyl compounds like itaconic acid (IA) can be isolated from soil samples. In the 1st step of screening, soil sources are plated on agar medium supplemented with an antimicrobial agent, α-thioglycerol (TG), and a radical initiator, VA-044 (VA). In the 2nd step of screening, vinyl compounds produced in the cultures are labelled with iodobenzene via the Mizoroki-Heck reaction, followed by an iodine test, leading to the detection and characterisation of labelled products. We evaluated the validity of DISCOVER using IA and its producer Aspergillus terreus. Experimental data supported our hypothesis that IA reacts with TG in the medium via the thiol-ene reaction and consequently, A. terreus rapidly forms colonies on the agar medium because of the loss of the antimicrobial activity of TG. Using DISCOVER, high throughput and selective isolation of A. terreus strains producing IA was possible from soils.

Absolute Rate Constants for Hydrocarbon Autoxidation. XXII. The Autoxidation of some Vinyl Compounds

1972 ◽  
Vol 50 (14) ◽  
pp. 2298-2304 ◽  
Author(s):  
J. A. Howard
Keyword(s):  
Rate Constants ◽  
Addition Reaction ◽  
Peroxy Radical ◽  
Stabilization Energy ◽  
Peroxy Radicals ◽  
Absolute Rate ◽  
Termination Rate ◽  
Vinyl Compound ◽  
Rate Constants For Addition

Absolute propagation and termination rate constants have been determined for the autoxidation of some vinyl compounds at 30°. Rates of propagation depend on the structure of both the peroxy radical and the vinyl compound. The reactivity of peroxy radicals towards addition increases as the electron-withdrawing capacity of the α-substituent increases. Rate constants for addition of t-butylperoxy radicals to vinyl compounds, [Formula: see text] fit the equation[Formula: see text]where Es is the estimated stabilization energy of the β-peroxyalkyl radical (in kcal/mol) formed in the addition reaction.

scholarly journals Synthesis of N-Vinyl Compound by Pyrolysis

1966 ◽  
Vol 87 (10) ◽  
pp. 1100-1101,A61
Author(s):  
Kiyoshi KATO ◽  
Matayashu YOSHIDA
Keyword(s):  
Vinyl Compound

Radical Homo- and Copolymerization of (2Z)-4-{1-(5-Methyl-2-pyrazolinyl)}-4-oxo-2- butenoic Acid, an AcyclicZ-1,2-Disubstituted Vinyl Compound

1998 ◽  
Vol 31 (19) ◽  
pp. 6712-6714
Author(s):  
Akihito Hashidzume ◽  
Tetsuya Noda ◽  
Atsushi Kajiwara ◽  
Yotaro Morishima ◽  
Mikiharu Kamachi
Keyword(s):  
Vinyl Compound ◽  
Butenoic Acid
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