Phenoxy-acrylates

The mechanism of Pd(OAc)2/PPh3-catalysed oxidation of ( l-type 3-phenoxy-acrylates (21) by CF3C02Ag under air pressure in the presence of benzene (Scheme 4) envisaged the formation of a vinyl palladium intermediate (22) from (21) and the catalyst. Next, (22) was converted to the intermediate (23). The elimination of Pd(0) from (23) gave benzofurans as the product (24). CF3C02Ag oxidized Pd(0) to Pd(OAc)2 to complete the catalytic cycle. ... 

MAJOR POLYMER APPLICATIONS polyurethane, NBR, EVA, PSF, phenoxy, acrylics, epoxy... 

Copolymerization of acrylamide with MAA in the presence of poly(alkylammonium chloride) as a template was described by Liu and co-workers. Microstructure of copolymer obtained by template polymerization, containing also phenoxy acrylate, was examined by NMR spectroscopy. Copolymerization was carried out in aqueous solutions with different pH. Dependence of hydrogen bonds between acrylamide blocks and MAA blocks on pH value of the solution was discussed in detail. 

Besides six-membered heterocycles, the construction of five-membered analogs by C-H olefination of phenol derivatives has also been reported. In 2011, Wang and coworkers reported a palladium-catalyzed oxidative cyclization of 3-phenoxy acrylates to construct benzofurans via an intramolecular aromatic C-H olefination (Scheme 3.13) [31]. In the presence of 5 mol% Pd(OAc)2/PPh3 and 2.0 equiv. of CF3C02Ag, benzofurans were obtained in good yields in... 

This type of adhesive is generally useful in the temperature range where the material is either leathery or mbbery, ie, between the glass-transition temperature and the melt temperature. Hot-melt adhesives are based on thermoplastic polymers that may be compounded or uncompounded ethylene—vinyl acetate copolymers, paraffin waxes, polypropylene, phenoxy resins, styrene—butadiene copolymers, ethylene—ethyl acrylate copolymers, and low, and low density polypropylene are used in the compounded state polyesters, polyamides, and polyurethanes are used in the mosdy uncompounded state. 

The tensile strength of NR compounds in the presence of cross-link promoters such as dichlorobenzene is increased as compared to the sulfur-accelerator and peroxide-curing systems. The retention of the maximum tensile strength at elevated temperamres is greater for radiation cured than for chemically vulcanized NR [326,327]. Also reported are a higher abrasion resistance [328] and a lower flex life in the case of radiation-cured system. Effect of phenoxy ethyl acrylate (PEA)... 

Lallemand et al. have found a pericyclic-anionic domino three-component reaction to prepare highly functionalized alcohols.115931 This reaction was originally developed by Vaultier, Hoffmann et al.[59bl Diels-Alder reaction of a 1,3-dienylboronate with an acrylate yields a mixture of endo and exo diastereomers of the coupled allylboronate, which in the presence of an aldehyde such as 4-phenoxy-butyraldehyde undergoes an allylation reaction. After hydrolysis the resulting diastereomeric alcohols are obtained in about 50 % yield, whereby two new stereogenic centers are formed in a stereoselective fashion. 

Polymer Blends. The miscibility of polyethylene oxide) with a number of other polymers has been studied, eg, with poly(methyl methacrylate) (18—23), poly(vinyl acetate) (24—27), polyvinylpyrrolidinone (28), nylon (29), poly (vinyl alcohol) (30), phenoxy resins (31), cellulose (32), cellulose ethers (33), poly(vinyl chloride) (34), poly(lactic acid) (35), poly(hydroxybutyrate) (36), poly(acrylic acid) (37), polypropylene (38), and polyethylene (39). 

Terminally brominated PE as PE macroinitiator can be produced by other methods. It has been reported that vinyl terminated PE produced by a bis(phenoxy-imine)metal complex and MAO catalyst system (Mn = 1800, Mw/Mn = 1.70) was converted to terminally 2-bromoisobutyrate PE through the addition reaction of 2-bromoisobutyric acid to the vinyl chain end. Polyethylene-Wodc-poly( -bulyl acrylate) (PE-fo-PnBA) from terminally brominated PE by ATRP procedure has also been produced [68]. It was reported that degenerative transfer coordination polymerization with an iron complex can be used to prepare terminally brominated PE as a macroinitiator [69]. A Zn-terminated PE prepared using an iron complex and diethylzinc,... 

Acrylate and styrene polymers as well as polysiloxanes with 11-phenoxy-naphthacene-5,12-quinone side groups (IIIB) were synthesized using the reaction of the active ester copolymers with 6-[(tyrosinebutylester)o-yl]-5,12-naphthacenequi-none.53... 

A simple procedure for the synthesis of 3-ethoxycarbonylbenzofurans from salicylaldehydes and ethyl diazoacetate has been developed. The reaction is believed to occur via a semipinacol rearrangement and tautomerization to a /3-hydroxy acrylate which is trapped by the adjacent phenoxy group (Equation 118) <2006S1711>. 

PHA PHENOXY PHMA PHMS P(HPA VAC VC) polyln-hexyl acrylate) phenoxy polyln-hexyl methacrylate) polylhexamethylene sebacate) polylhydroxypropyl acrylate-co-vinyl acetate-co-vinyl chloride)... 

Ozdeger et al. studied the role of the nonionic emulsifier Triton X-405 (octyl-phenoxy polyethoxy ethanol) in the emulsion homopolymerization of St [99] and n-butyl acrylate (n-BA) [ 100], and in the emulsion copolymerization of St and n-BA [101]. In the emulsion homopolymerization of St, they noted two separate nucleation periods, resulting in bimodal PSDs. Although the total concentration of the emulsifier was maintained at a level above its CMC based on the water phase in the recipe, the portion of the emulsifier initially present in the aqueous phase was below the CMC due to partitioning between the oil and aqueous phases. Due to the nature of this emulsifier, the first of the two nucleation periods was attributed to homogeneous nucleation, while the second was... 

PHENOXY-l,2-EPOXYPROPANE see PFF360 PHENOXYETHANOL see PEROOO 2-PHENOXYETHANOL see PEROOO 2-PHENOXYETHANOL ACRYLATE see PER250 2-(2-PHENOXYETHOXY)ETHANOL see PEQ750 PHENOXYETHYL ACRYLATE see PER250 PHENOXYETHYL ALCOHOL see PEROOO... 

Bakelite [Bakelite AG], TM for polyethylene, polypropylene, epoxy, phenolic, polystyrene, phenoxy, perylene, polysulfone, ethylene copolymers, ABS, acrylics, and vinyl resins and compounds. 

MAJOR POLYMER APPLICATIONS PVC, polyester, polyurethane, epoxy, acrylics, POM, ABS, PA, PC, PE, PI, PMMA, PPO, PP, PS, PSF, melamine, phenoxy, silicone... 

MAJOR POLYMER APPLICATIONS PA, PVC, PE, PP, PPO, POM, PC, PS, ABS, polyester, acrylics, alkyd, polyurethane, melamine, phenoxy... 

MAJOR POLYMER APPLICATIONS aUcyd, acrylics, polyurethanes, epoxy, PP, PA, LCP, PET, SAN, PMMA, fluorombber, phenoxy... 

MAJOR POLYMER APPLICATIONS alkyd, polyurethane, acrylic, rubber, melamine resins, phenoxy, polyester,... 

Poly[V-(3-aminopropyl)methylacrylamide hydrochloride] Poly(sodium-2-acrylamido-2-methylpropanesulfonate) Poly 6-[4-(4-methylphenyl-azo) phenoxy]hexyl acrylate Poly(butadiene)... 

PS or SMMA and PEST compatibilizer acrylic elastomer, Phenoxy Izawa Nakanishi, 1973... 

In principle, any polymer that is miscible with two others can be used as co-solvent. As the data in Table 4.1 indicate, Phenoxy, PMMA, PPE, PC and PCL are miscible with several polymers, hence they are the best candidates for co-solvents of many systems. It is noteworthy that acrylic multipolymers are often used as additives to many blends. Their role is to enhance compatibilization as well as to toughen the blends. 

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