Syntheses and properties of polymers from 1-chloro-2,3-epoxypropane and amines

doi:10.1002/APP.1984.070290432

Paper

Syntheses and properties of polymers from 1-chloro-2,3-epoxypropane and amines

Published Apr 1, 1984 · C. Caldo

Journal of Applied Polymer Science

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Abstract

1-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 at 250°C 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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Excess amines in 1-chloro-2,3-epoxypropane create linear, thermally stable amino polymers with high melting temperatures and low weight losses, making them useful as dyeability modifiers for synthetic fibers.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Syntheses and properties of polymers from 1-chloro-2,3-epoxypropane and amines

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