Results 261 to 270 of about 33,926 (294)
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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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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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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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Polyethylene terephthalate structural studies
Journal of Polymer Science Part A: General Papers, 1963AbstractThe absorption intensity of a given infrared absorption band, in the infrared spectrum of an oriented polymer is composed of an orientation and a structural factor. A method is discussed, using polarized infrared radiation, which will measure the contribution of each.
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Modified polyethylene terephthalate fibers
2007The performance of standard poly-ethylene terephthalate filaments is in many cases seriously prejudiced by some negative properties of these fibers, such as their nearly complete water repellency, difficult dyeability, tendency to pilling, formation of static, etc. The present paper aimes to recall the methods proposed and realized in order to overcome
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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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Polyethylene Terephthalate (Dacron®) in Intraocular Surgery
Ophthalmology, 1981Polyethylene terephthalate (Dacron) exhibits properties that make it highly suitable for use in intraocular surgery. These include high breaking and knot strength, good tensile strength retention in vivo, low tissue reaction, high resistance to hydrolysis, and good resistance to light.
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