polycondensation

Synthesis of polyesters is generally achieved by a polycondensation reaction.

This work has wide ranging impact globally on both theory and practice of polycondensation reactors.

It is necessary to hold the growing polymer chain in solution in the course of the polycondensation process.

Most polyesters are made with a polycondensation reaction.

The synthesis is based on a three-step hydrolytic polycondensation process of 3-chlo- ropropyltrimethoxysilane.

Subsequent thermal treatment (firing) may be performed in order to favor further polycondensation and enhance mechanical properties.

Polycondensation reactions are also common to make high refractive index polymers, such as polyesters.

Nylon 6-6 is synthesised by polycondensation of hexamethylenediamine and adipic acid.

It can be prepared starting from glycolic acid by means of polycondensation or ring-opening polymerization.

Geopolymerization (polycondensation) into higher oligomers and polymeric 3D-networks.

Chemically it is an aromatic polyester produced by the polycondensation of 4-hydroxybenzoic acid and 6-hydroxynaphthalene-2-carboxylic acid.

Polycondensation into zeolite-like 3D-frameworks.

Thereafter, polycondensation is done in the melt or as a solution, where short oligomeric units are combined to give a high molecular weight polymer strand.

An apparently anomalous observation of the enhancement of polycondensation rate with increased side reactions, which had remained unexplained so far, was resolved.

Via the process called polycondensation, CHDM is a precursor to polyesters.

Water removal by application of a vacuum or by azeotropic distillation is crucial to favor polycondensation over transesterification.

During surfactant-mediated synthesis, hydrolysis and polycondensation, or co-condensation, are used to fuse precursor molecules in a framework.

Polycondensation is carried out by heating an halogenoacetate, like sodium chloroacetate, at a temperature between 160-180 C, continuously passing nitrogen through the reaction vessel.

The classic variety is epoxy resin, manufactured through polymerization-polyaddition or polycondensation reactions, used as a thermoset polymer for adhesives and composites.

Interfacial cross-linking is derived from interfacial polycondensation, and was developed to avoid the use of toxic diamines, for pharmaceutical or cosmetic applications.

Typical precursors are metal alkoxides and metal chlorides, which undergo hydrolysis and polycondensation reactions to form a colloid.

In Interfacial polycondensation, the two reactants in a polycondensation meet at an interface and react rapidly.

Polycyclohexylenedimethylene terephthalate (PCT) is a thermoplastic polyester formed from the polycondensation of terephthalic acid and cyclohexylene-dimethanol.

His mode of synthesis is similar generally for reactions involved in the polymerizations based on organic and the establishment of solutions reactive energy intake without essential polycondensation.

PGS is synthesized by a polycondensation reaction of glycerol and sebacic acid, which can be melt processed or solvent processed into the desired shape.