109-16-0Relevant articles and documents
PROTEIN-POLYMER COMPLEX, TGase SUBSTRATE-CONTAINING POLYMER, TGase SUBSTRATE-CONTAINING MONOMER, METHOD FOR PRODUCING PROTEIN-POLYMER COMPLEX, AND METHOD FOR IMPROVING PROTEIN FUNCTION ON INTERFACE OR IN VICINITIY OF INTERFACE OF SOLID-LIQUID
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Paragraph 0153; 0154; 0155, (2016/08/17)
Provided is a protein-polymer complex which is capable of detecting a target with good sensitivity. Specifically provided is a protein-polymer complex comprising a polymer having a glutamine (Gln) residue or a primary amine on a side chain, wherein either a protein having a primary amine is bound to the glutamine (Gln) residue, or a protein having a glutamine (Gln) residue is bound to the primary amine.
Polymerizable silicone copolyol macromers and polymers made therefrom
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, (2014/08/19)
A polymerizable dimethicone copolyol macromer composition is synthesized by reacting itaconic anhydride with a dimethicone copolyol. During the reaction itaconic anhydride spontaneously isomerizes to citraconic anhydride which in turn is esterified by the dimethicone copolyol. The obtained macromers are copolymerizable with olefinically unsaturated monomers. Polymers containing the macromer repeating units are useful in a variety of applications including personal care, textile and industrial formulations to deliver softness, lubricity, fixative, water repellency, gloss, surface modification, and surfactant properties.
COMPOSITION FOR POLYELECTROLYTES, POLYELECTROLYTES, ELECTRICAL DOUBLE LAYER CAPACITORS AND NONAQUEOUS ELECTROLYTE SECONDARY CELLS
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, (2008/06/13)
A polymer electrolyte-forming composition containing (A) a quaternary ammonium salt of general formula (1) below and (B) an ionic liquid can be converted into a polymer without compromising the excellent properties of the ionic liquid, thus enabling an electrolyte having an excellent safety and electrical conductivity and also a broad potential window to be obtained. In formula (1), R1 to R3 are each independently an alkyl group of 1 to 5 carbons or a substituent having a reactive unsaturated bond and any two from among R1 to R3 may together form a ring, and R4 is methyl, ethyl or a substituent having a reactive unsaturated bond, with the proviso that at least one of R1 to R4 is a substituent having a reactive unsaturated bond. X is a monovalent anion, the letter m is an integer from 1 to 8, and the letter n is an integer from 1 to 4.
Process for synthesis of Di(meth)acrylic acid esters
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Page/Page column 7, (2008/06/13)
A process for the synthesis and recovery of di(meth)acrylic acid esters at a high degree of purity. Di(meth)acrylic acid esters are produced by transesterfication of (meth)acrylic acid esters of C1to C4alcohols with 1,n-diols (where n≧3) in the presence of a zirconium catalyst that comprises a chelate of zirconium with a 1,3-dicarbonyl compound. These catalysts can be readily separated or removed from the reaction mixture by precipitation with phosphoric acid, thus providing a convenient and inexpensive method of producing a di(meth)acrylic acid ester with a reduced level of zirconium.
Synthesis of water-soluble polymethacrylates by living anionic polymerization of trialkylsilyl-protected oligo(ethylene glycol) methacrylates
Ishizone, Takashi,Han, Seok,Okuyama, Syunsuke,Nakahama, Seiichi
, p. 42 - 49 (2007/10/03)
2-[2-[(tert-Butyldimethylsilyl)oxy]ethoxy]ethyl methacrylate (2) and 2-[2-[2-[(tert-butyldimethylsilyl)oxy] ethoxy] ethoxy] ethyl methacrylate (3) were polymerized anionically in THF at -78 °C for 2-24 h. The anionic initiator systems included 1,1-diphenyl-3-methylpentyllithium/lithium chloride and diphenylmethylpotassium/diethylzinc. The polymerization of novel tert-butyldimethylsilyl-protected oligo(ethylene glycol) methacrylates, 2 and 3, proceeded quantitatively in each case. The resulting polymers possessed the predicted molecular weights based on the molar ratios of monomers to initiators, and narrow molecular weight distributions (Mw/Mn 1.1). The stability of the propagating carbanion of poly(2) and poly(3) was ascertained by the quantitative efficiencies of the sequential block copolymerizations using tert-butyl methacrylate (tBMA). Well-defined block copolymers, poly(2)-block-poly(tBMA) and poly(3)block-poly(tBMA), were obtained. The trialkylsilyl protecting groups of poly(2) and poly(3) were quantitatively hydrolyzed using 2 N HC1 in aqueous THF at 0 °C for 2 h to give tailored poly[di(ethylene glycol) methacrylate] and poly[tri(ethylene glycol) methacrylate], respectively. Both polymethacrylates obtained after deprotection were readily soluble in water due to the high polarity of the hydrophilic oligo(ethylene glycol) pendant units with terminal OH functionality.
Filled and polymerizable dental material
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, (2008/06/13)
A filled and polymerizable dental material is described which contains a sol of SiO2 particles in a liquid, organic dispersion agent, the SiO2 particles being organically surface modified, having an average size of 10 to 100 nm and being non-agglomerated.
X-ray opaque dental materials
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, (2008/06/13)
X-ray opaque esters or amides of iodosubstituted benzoic acid according to formula I and polymers and dental materials produced therefrom. STR1 R1 =hydrogen or C1 to C3 alkyl, preferably H or CH3 ; R2 =straight-chain or branched C1 to C6 alkylene, oxyalkylene or arylene, preferably C2 to C4 alkylene and particularly preferably --CH2 --CH2 -- and --CH2 CH(--)CH2 --; X=O or NH, preferably O; R3 -R7 =at least 3 iodine substituents, preferably in R3, R4 and R6 or R3, R5 and R7 position, the other groups are hydrogen, C1 to C6 alkyl, C1 to C6 alkoxy, --Cl, --Br, --OH, --NH2, --N(C1 to C6 alkyl)2 or --NH--CO--(C1 to C6 alkyl), preferably R3, R4, and R6 are=I and R5 and R7 =H, or R3, R5 and R7 =I and R4 and R6 =--NH(COCH3); n=1, 2 or 3, preferably 1 or 2. The benzoic acid esters and amides according to the invention can be well polymerized radically or anionically, the polymers are well soluble in the usual dental monomers. Dental materials produced from the monomers or polymers are characterized in that the X-ray opaque component is bonded covalently into the polymeric matrix material and cannot therefore be washed out. Furthermore, excellent X-ray opacity can be achieved without using fillers.
Organotin catalyzed transesterification
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, (2008/06/13)
Esters of monocarboxylic acids are transesterified with 1,2- and 1,3-polyols by reaction in the presence of a catalytically effective amount of a dialkyltin oxide blended with an excess of dialkyltin dichloride, so that a polyol ester of the monocarboxylic acid is formed. A transesterification reaction of alcohols and polyols with methyl or ethyl mono- or polycarboxylic acid esters utilizing a dimethyltin catalyst is also disclosed, in which the alcohol or polyol carboxylic acid ester formed is essentially free of the organotin catalyst. Carboxylic acid esters produced by the described methods, as well as carboxylic acid esters that are free of organotin catalysts are also disclosed.
Kinetics of the Esterification of Triethylene Glycol by Methacrylic Acid
Onishchenko, V. V.,Gantman, A. I.
, p. 1132 - 1134 (2007/10/02)
In order to model catalysis by sulphonic acid cadion-exchange resins, the esterification of triethylene glycol by methacrylic acid has been studied experimentally in the presence of a large amount of catalyst (toluene-p-sulphonic acid).A mathematical model of the process is proposed.
Dental filler material containing zeolite for dental composite and method of manufacture
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, (2008/06/13)
The dental filler material is formed from a selection of one or more finely divided inorganic particles of, barium containing glass or zeolite crystals with up to 100% of such particles having a coating thereon of a polymerized acrylate containing monomers or oligomers. The dental composite is formed using the dental filler material and a methacrylate based polymeric resin binder system.
