Results 211 to 220 of about 28,325 (264)
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Solubility of Polyethylene Terephthalate
Nature, 1965IT is generally considered that polyethylene terephthalate is soluble only in a restricted range of rather specialized organic liquids, such as o-chlorophenol, tetrachlorethane/phenol, etc. It is the purpose of this report to describe conditions under which this range may be extended.
L. COTTAM, R. P. SHELDON
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Aminolysis of polyethylene terephthalate
Polymer, 1963Abstract By treating polyethylene terephthalate fibres with solutions of hydrazine, benzylamine, ethylenediamine, hexamethylenediamine, piperidine and aniline the following amides of terephthalic acid and oligomeric diacids have been obtained: terephthalic dihydrazide, terephthalic bis-benzylamide, bis-benzylamides of oligomers, probably dimer and ...
H. Zahn, H. Pfeifer
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Polyethylene Terephthalate Blends
International Polymer Processing, 1988Abstract Polymer-Polymer blends containing ethylene-methacrylic copolymers (EMAA) and polyethylene terephthalate (PET) (where PET is the minor component) have been investigated. The permeability properties and the morphology of these blends, when the polyolefin phase is mildly crosslinked with small amounts of an agent that ...
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Journal of Raman Spectroscopy
ABSTRACT Materials based on polyethylene terephthalate (PET) and polyethylene terephthalate glycol (PETG) are in high demand for numerous practical applications. Their physico‐chemical properties depend heavily on the crystallinity degree (CD).
L. Yu. Kozlova +7 more
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ABSTRACT Materials based on polyethylene terephthalate (PET) and polyethylene terephthalate glycol (PETG) are in high demand for numerous practical applications. Their physico‐chemical properties depend heavily on the crystallinity degree (CD).
L. Yu. Kozlova +7 more
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Crystallization of polyethylene terephthalate
Journal of Polymer Science, 1953AbstractA method for following rapid crystallization in polymers using infrared absorption has been devised. The infrared absorption was correlated quantitatively with the density of polyethylene terephthalate for varying degrees of crystallinity and qualitatively with the change in x‐ray diffraction pattern on crystallization of this polymer.
W. H. Cobbs, R. L. Burton
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Etching of polyethylene terephthalate
Journal of Polymer Science, 1962AbstractA degradative etching technique has been employed with polyethylene terephthalate films to demonstrate the existence of several different structures, the size of which vary from hundreds of microns to hundreds of Angstroms. The micron‐sized structures are a function of the processing and orientation of the film and occur in regular geometric ...
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Fine structure in polyethylene terephthalate fibres
Vacuum, 1953IT has recently been shown by Kassenbeck1 that drawn fibres of polyethylene terephthalate possess a surface skin, some 2500 A. in thickness. This was demonstrated by making two-stage polystyrene–silica replicas of carefully prepared sections, and photographing the replicas in the electron microscope.
A. COBBOLD +3 more
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Microbial modification of polyethylene terephthalate fabric
Journal of Applied Polymer Science, 2011AbstractA great disadvantage of synthetic fibers is their low hydrophilicity. Polyester fibers are particularly hydrophobic. In the first place, this affects the processability of the fibers. The surfaces are not easily wetted, thus impeding the application of finishing compounds and coloring agents.
Akkaya, Alper +1 more
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The photolysis of polyethylene terephthalate
Journal of Polymer Science, 1959AbstractThe photolysis of films of polyethylene terephthalate has been studied over a wide variation of exposure conditions. The rate of polymer bond rupture was measured by the change in molecular weight. The rate of energy absorption upon exposure to near ultraviolet light was determined from an analysis of the emission characteristics of the light ...
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