## Abstract A number of functionalized triglycerides were synthesized from glyceryl trioleoate via epoxidation followed by reduction to give glyceryl tris(9‐hydroxy)trioleoate (a triol) or hydrolytic ring opening to obtain glyceryl tris(9,10‐dihydroxy)trioleoate (a hexaol). A selective monoepoxidat
Syntheses and properties of polymers from 1-chloro-2,3-epoxypropane and amines
✍ Scribed by C. Caldo
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 423 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Synopsis
l-Chloro-2,3-epoxypropane (CEP) reacts with excess of amines giving linear, thermally stable amino polymers, useful as dyeability modifiers for synthetic fibers. The polycondensation of 1- chloro-2,3-epoxypropane with amines is described, and preparations of such polymers are given: the polycondensations are carried out in one or two steps. In the first step, a mixture of polymeric aminochlorohydrins is formed. Alkalies added at the end of the polycondensations act as regulators of the molecular weight of the polymers obtained. The amino polymers, prepared with an excess of amines, have high melting temperatures, without decomposition; the weight losses in air a t 25OOC and 300°C are lower than those of the corresponding amino polymers prepared with deficient amounts of amines; the change of inherent viscosities due to thermal treatments is generally low.
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## SYNOPSIS 1 -Chloro-2-@-naphthylacetylene (ClPNA) polymerized in good yields in the presence of MoC1,-based catalysts. The highest weight-average molecular weight of poly(Cl@NA) reached about 3 X lo5. T h e polymer was a yellow solid (absorption cutoff in CHC1,450 nm). It was soluble in toluene,
Rate constants for the reaction of 1-chloro-2,3-epoxypropane with p-cresol in the presence of basic catalysts were studied at the temperature range of 71 -100°C. It was found that in the presence of sodium p-cresolate, three consecutive reactions proceeded giving the following products: 1-chloro-3-
A series of differently substituted 2-chloro-, 2-fluoro-and 2-with BF 3 •OEt 2 , BCl 3 , or BI 3 in n-hexane. Compounds 3a, 5a, and 5b are also available by sodium amalgam reduction of iodo-2,3-dihydro-1H-1,3,2-diazaboroles have been prepared by various methods. 1,3-Di-tert-butyl-2-fluoro-2,3-dihydr