Ethylene oxide epichlorohydrin

Sanchavanakit N, Sangrungraungroj W, Kaomongkolgit R et al (2006) Growth of human kerati-nocytes and fibroblasts on bacterial cellulose film. Biotechnol Prog 22 1194—1199 Schroers M, Kokil A, Weder C (2004) Solid polymer electrolytes based on nanocomposites of ethylene oxide-epichlorohydrin copolymers and cellulose whiskers. J AppI Polym Sci... 

The Si02/ethylene oxide-epichlorohydrin copolymer compositions were 71 29-29 71 in gel-sol hybrid nanocomposites. Acid condensation of TEOS in THE afforded an inorganic network. jiiese networks have also been prepared from alkoxy derivatives of aliuninium. 

Some of the discussed additives may affect electrical properties of the materials. There is not much information published on this subject. It is known from literature that fluoropolymer additives made a dramatic improvement in the processing rates of several polymers (ethylene oxide epichlorohydrin copolymer, silicone, polyacrylate, nitrile butadiene rubber, and ethylene propylene diene terpolymer) without affecting the dielectric constant and dissipation factors. It can be assumed that a similar effect can be obtained with some silicone additives, but in the remaining cases, these properties have to be analyzed if they are of importance. 

GAZOTTi, W.A., SPINACEM, A.S., Polymei electrolytes based on ethylene oxide-epichlorohydrin co-polymers, Solid State Ion, 2000, 130(3-4), 281-9. 

In the IR spectra of these copolymers, the band at 1682-1695 cm, which was assigned to the C=0 stretching vibration in the dialdehydes, is no longer present, but a new band at 957-959 cm has emerged. This new band is attributed to the out-of-plane bending vibration of the trans -CH=CH- moieties, which are formed from the C=0. It is noteworthy that the copolymers contain polyvinylene units which are only 2.5 units long. Sequencing studies have also been conducted on polyethylene oxide -1,2-butylene [224] and ethylene oxide - epichlorohydrin copolymers. 

Poly(epichlorohydrin-co-ethylene oxide-co-allyl glycidyl ether) [26587-37-1... 

Allyl Glycidyl Ether. This ether is used mainly as a raw material for silane coupling agents and epichlorohydrin mbber. Epichlorohydrin mbber is synthesized by polymerizing the epoxy group of epichlorohydrin, ethylene oxide, propylene oxide, and aHyl glycidyl ether, AGE, with an aluminum alkyl catalyst (36). This mbber has high cold-resistance. 

Epichlorohydrin. Commercial polyester elastomers include both the homopolymer and the copolymer of epichl orohydrin with ethylene oxide. The very polar chloromethyl groups create basic resistance to oil for these polymers, and they have been extensively used in fuel lines however, the desire for lower fuel permeation is causing a search to be made for other polymers (10) (see Elastomers, synthetic-polyethers). 

For many years ethylene chlorohydrin was manufactured on a large iadustrial scale as a precursor to ethylene oxide, but this process has been almost completely displaced by the direct oxidation of ethylene to ethylene oxide over silver catalysts. However, siace other commercially important epoxides such as propylene oxide and epichlorohydrin cannot be made by direct oxidation of the parent olefin, chlorohydrin iatermediates are stiU important ia the manufacture of these products. 

Virtually all of the organo derivatives of CA are produced by reactions characteristic of a cycHc imide, wherein isocyanurate nitrogen (frequendy as the anion) nucleophilically attacks a positively polarized carbon of the second reactant. Cyanuric acid and ethylene oxide react neady quantitatively at 100°C to form tris(2-hydroxyethyl)isocyanurate [839-90-7] (THEIC) (48—52). Substitution of propylene oxide yields the hydroxypropyl analogue (48,49). At elevated temperatures (- 200° C). CA and alkylene oxides react in inert solvent to give A/-hydroxyalkyloxazohdones in approximately 70% yield (53). Alternatively, THEIC can be prepared by reaction of CA and 2-chloroethanol in aqueous caustic (52). THEIC can react further via its hydroxyl fiinctionahty to form esters, ethers, urethanes, phosphites, etc (54). Reaction of CA with epichlorohydrin in alkaline dioxane solution gives... 

Epichlorohydrin Elastomers without AGE. ECH homopolymer, polyepichlorohydrin [24969-06-0] (1), and ECH—EO copolymer, poly(epichlorohydrin- (9-ethylene oxide) [24969-10-6] (2), are linear and amorphous. Because it is unsymmetrical, ECH monomer can polymerize in the head-to-head, tail-to-tail, or head-to-tail fashion. The commercial polymer is 97—99% head-to-tail, and has been shown to be stereorandom and atactic (15—17). Only low degrees of crystallinity are present in commercial ECH homopolymers the amorphous product is preferred. 

AGE-Gontaining Elastomers. ECH—AGE, poly(epichlorohydrin-fo-allyl glycidyl ether) [24969-09-3] (3), ECH—EO—AGE, poly(epichlorohydrin- (9-ethylene oxide-i (9-allyl glycidyl ether) [26587-37-1] (4), ECH—PO—AGE, and PO—AGE are also amorphous polymers. 

AECO terpolymers of allyl glycidyl ether, ethylene oxide and epichlorohydrin... 

Compd (I) was obtained by treating ethylene oxide with 60% perchloric acid, and compd (11) by the action of 60% perchloric acid on epichlorohydrin. Both compds are oils immiscible with w, and according to these investigators, both produce an expl effect greater than NG. They are both readily hydrolyzed by w at RT, or in the presence of atm moisture... 

The preferred catalysts are salts of inorganic and organic acids as well as tertiary amines. Phthalic anhydride, succinic anhydride and maleic anhydride are typical acid anhydrides, while ethylene oxide, propylene oxide, epichlorohydrin and phenyl glycidyl ether are typical epoxides. The synthesis of a ladder polymer was carried out by using bisanhydrides264. ... 

Computations were carried out for nine chemicals beryllium, carbon tetrachloride, chloroform, dioxin, epichlorohydrin, ethylene oxide, formaldehyde, manganese, and trichloroethylene. 

Epichlorohydrin copolymer with ethylene oxide. EDAX... 

Chlorohydrin—polymer of epichlorohydrin ot copolymer of epichlorohydrin and ethylene oxide 8 85 13.6 0.7... 

Synonyms AI3-03545 BRN 0079785 Caswell No. 424 CCRIS 277 l-Chloro-2,3-epoxypro-pane 3-Chloro-l,2-epoxypropane (Chloromethyl)ethylene oxide (Chloromethyl)oxirane 2-(Chloromethyl)oxirane 2-Chloropropylene oxide y-Chloropropylene oxide 3-Chloro-l,2-propyl-ene oxide ECH EINECS 203-439-8 EPA pesticide chemical code 097201 a-Epichlorohydrin (d -a-Epichlorohydrin Epichlorophydrin l,2-Epoxy-3-chloropropane 2,3-Epoxy propyl chloride Glycerol epichlorohydrin NCI-C07001 NSC 6747 RCRA waste number U041 UN 2023. 

Chloro-3-hydrox34oluene, see p-Chloro-ro-cresol 2-Chloroisopropyl ether, see Bis(2-chloroisopropyl) ether p-Chloroisopropyl ether, see Bis(2-chloroisopropyl) ether Chloromethane, see Methyl chloride (Chloromethyl)benzene, see Benzyl chloride Chloromethyl bromide, see Bromochloromethane Chloromethyl ether, see sym-Dichloromethyl ether (Chloromethyl)ethylene oxide, see Epichlorohydrin (2-Chloro-l-methylethyl) ether, see Bis(2-chloroisoprop-yl)... 

Polyepichlorohydrin and copolymers and terpolymers of epichlorohydrin with ethylene oxide and allyl glycidyl ether are useful elastomers [Body and Kyllinstad, 1986]. 

Polymers of epichlorohydrin and copolymers of epichlorohydrin with ethylene oxide am atactic, flexible, amorphous elastomers with the following repeating unit ... 

Polyethers are prepared by the ring opening polymerization of three, four, five, seven, and higher member cyclic ethers. Polyalkylene oxides from ethylene or propylene oxide and from epichlorohydrin are the most common commercial materials. They seem to be the most reactive alkylene oxides and can be polymerized by cationic, anionic, and coordinated nucleophilic mechanisms. For example, ethylene oxide is polymerized by an alkaline catalyst to generate a living polymer in Figure 1.1. Upon addition of a second alkylene oxide monomer, it is possible to produce a block copolymer (Fig. 1.2). 

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