157859-20-6Relevant articles and documents
Synthesis of homopolymers, diblock copolymers, and multiblock polymers by organocatalyzed group transfer polymerization of various acrylate monomers
Takada, Kenji,Ito, Takahiro,Kitano, Kodai,Tsuchida, Shinji,Takagi, Yu,Chen, Yougen,Satoh, Toshifumi,Kakuchi, Toyoji
, p. 511 - 519 (2015)
The group transfer polymerization (GTP) with N-(trimethylsilyl)bis(trifluoromethanesulfonyl)imide (Me3SiNTf2) and 1-methoxy-1-triisopropylsiloxy-2-methyl-1-propene (iPr-SKA) has been studied using methyl acrylate (MA), ethyl acrylate (EA), n-butyl acrylate (nBA), 2-ethylhexyl acrylate (EHA), cyclohexyl acrylate (cHA), dicyclopentanyl acrylate (dcPA), tert-butyl acrylate (tBA), 2-methoxyethyl acrylate (MEA), 2-(2-ethoxyethoxy)ethyl acrylate (EEA), 2-(dimethylamino)ethyl acrylate (DMAEA), allyl acrylate (AlA), propargyl acrylate (PgA), 2-(triisopropylsiloxy)ethyl acrylate (TIPS-HEA), and triisopropylsilyl acrylate (TIPSA). Except for tBA and DMAEA, the GTPs of all other monomers described above proceeded rapidly in a living manner and produced well-defined homo acrylate polymers. The living nature of the GTPs of such acrylate monomers was further applied to the postpolymerizations of MA, EA, nBA, and MEA and also to the sequential GTPs of diverse acrylate monomers for preparing di- and multiblock acrylate polymers. In greater detail, the AB and BA diblock copolymers, (ABC)4 dodecablock terpolymer, (ABCD)3 dodecablock quaterpolymer, and ABCDEF hexablock sestopolymer were synthesized by sequential GTP methods using various acrylate monomers.
Preparation method of trialkyl silicon acrylate
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Paragraph 0014; 0015; 0022, (2018/03/24)
The invention discloses a preparation method of trialkyl silicon acrylate, which comprises the following steps of (1) adding trialkyl chlorosilane, acrylate, a catalyst, a polymerization inhibitor andan inert solvent to a reaction vessel under protection of nitrogen, and then performing a reaction at 20-90 DEG C to obtain a reaction liquid containing trialkyl silicon acrylate, (2) filtering the reaction liquid obtained in Step (1) and taking a filtrate containing trialkyl silicon acrylate, or performing water washing on the reaction liquid obtained in Step (1), performing standing and liquidseparation, and taking the lower reaction liquid containing trialkyl silicon acrylate, and (3) adding the polymerization inhibitor to the filtrate or the lower reaction liquid in Step (2), and then performing rectification under vacuum to obtain trialkyl silicon acrylate. The preparation method has the advantages that the preparation method is simple in technology, easy to operate and low in energy consumption; trialkyl silicon acrylate is high in yield and purity; the yield is greater than 80%; and the purity is greater than 99%.
DISTILLATION METHOD FOR UNSATURATED CARBOXYLIC ACID SILYL ESTER
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Paragraph 0046, (2017/02/09)
PROBLEM TO BE SOLVED: To provide a distillation method where the formation of polymeric substance is hardly present, and further, unsaturated carboxylic acid silyl ester can be refined by distillation, even if the distillation operation takes a long time, with a high product recovery rate. SOLUTION: When unsaturated carboxylic acid, triorganomonochlorosilane and a base are reacted in a solvent to produce unsaturated carboxylic acid silyl ester so as to be distillated, after the completion of the reaction, the reaction liquid is added with an amine-based polymerization inhibitor, and distillation is performed: as the amine-based polymerization inhibitor, N-i-propyl-N'-phenyl-p-phenylene diamine, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine, N,N'-di-2-naphthyl-p-phenylenediamine is preferable. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPO&INPIT
Process for the production of silyl carboxylate monomers
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Page 7; 8, (2008/06/13)
A process for the production of hydrocarbyl silyl unsaturated carboxylates of formula (I) is described, wherein n represents a number of dihydrocarbylsiloxane units from 0 to 1000. The process includes the reaction of an unsaturated carboxylic acid of formula (II) with a hydrocarbyl silyl compound of formula (III) the said reaction being carried out in the presence of a silaphilic catalyst.
