Results 191 to 200 of about 34,742 (229)
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Photolysis of poly(ethylene terephthalate)
Journal of Polymer Science Part A-1: Polymer Chemistry, 1967AbstractThe photolysis of poly(ethylene terephthalate) films was studied in vacuo with light of wavelengths 2537 and 3130 A. A very stable filter system which cuts out the 3025 A. line was developed to isolate 3130 A. from a mercury spectrum. Despite the fact that the penetration of 2537 A. light was limited to a depth of a ca. 103 A.
F. B. Marcotte +3 more
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Journal of Applied Polymer Science, 2007
AbstractPoly(ethylene terephthalate) was extruded, solid‐state‐drawn, and annealed to simulate the structure of poly(ethylene terephthalate) microfibers in a poly(ethylene terephthalate)/polypropylene blend. Differential scanning calorimetry and wide‐angle X‐ray scattering analyses were conducted to study the structural development of the poly(ethylene
Chung, CY +4 more
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AbstractPoly(ethylene terephthalate) was extruded, solid‐state‐drawn, and annealed to simulate the structure of poly(ethylene terephthalate) microfibers in a poly(ethylene terephthalate)/polypropylene blend. Differential scanning calorimetry and wide‐angle X‐ray scattering analyses were conducted to study the structural development of the poly(ethylene
Chung, CY +4 more
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Polymer, 2005
Abstract Uniaxial and plane strain compression experiments are conducted on amorphous poly(ethylene terephthalate) (PET) and poly(ethylene terephthalate)-glycol (PETG) over a wide range of temperatures (25–110 °C) and strain rates (.005–1.0 s −1 ).
Rebecca B. Dupaix, Mary C. Boyce
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Abstract Uniaxial and plane strain compression experiments are conducted on amorphous poly(ethylene terephthalate) (PET) and poly(ethylene terephthalate)-glycol (PETG) over a wide range of temperatures (25–110 °C) and strain rates (.005–1.0 s −1 ).
Rebecca B. Dupaix, Mary C. Boyce
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Enzymatic surface modification of poly(ethylene terephthalate)
Journal of Biotechnology, 2005This study unambiguously confirms hydrolysis using cutinase of the persistent synthetic polymer poly(ethylene terephthalate), the most important synthetic fiber in the textile industry by direct measurement and identification of the different hydrolysis products. In this aqueous heterogeneous system, dissolved cutinase from Fusarium solani pisi acts on
Vertommen, M.A.M.E. +3 more
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Poly(ethylene terephthalate) yarn with antibacterial properties
Journal of Biomaterials Science, Polymer Edition, 2001Poly(ethylene terephthalate) (PET) yarn with grafted poly(acrylic acid) (poly(AA)) was loaded with [6R-[6alpha,7beta(Z)]]-7-[[2-amino-4-thiazolyl)(methoxy-imino)acetyl]aminol-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-1,2,4-triazin-3-yl)thio]-methyl]-5-thia-1-azabicyclo[4.2.0] oct-2-ene-2-carboxylic acid (Lendacin), a cephalosporin-type ...
J, Buchensk +3 more
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Antioxidants for poly(ethylene terephthalate)
1998Polymers undergo oxidation reactions when heated in air. Heating of the polymer takes place at any stage of the life of the polymer, e.g. during polymerization, processing or end use of the ready product. Oxidation results in chain scission, branching, crosslinking or formation of oxygen-containing functional groups and leads to deterioration of ...
G. P. Karayannidis +2 more
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Poly(butylene terephthalate) poly(ethylene terephthalate) mixtures formed by ball milling
Materials Research Bulletin, 1999Mixtures of poly(butylene terephthalate) (PBT) and poly(ethylene terephthalate) (PET) polymers were formed using ball milling technique and characterized by means of differential scanning calorimetry (DSC) and X-ray diffraction (XRD). PET with different degrees of crystallinity was used in the solid-state mechanical milling process.
Joan Font +2 more
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Crystallization of Poly(ethylene terephthalate)
1968It has been reported that several endothermic melting transitions exist in differential thermal analysis thermograms of polyethylene.1 Similar transitions are reported in differential scanning calorimetric thermograms of poly (ethylene terephthalate)2 and bisphenol-A polycarbonate.3 The appearance of separate melting endotherms in these polymers is ...
E. L. Lawton, D. M. Cates
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Ultrasound-enhanced enzymatic hydrolysis of poly(ethylene terephthalate)
Bioresource Technology, 2016The application of ultrasound was found to enhance enzymatic hydrolysis of poly(ethylene terephthalate) (PET). After a short activation phase up to 6.6times increase in the amount of released products was found. PET powder with lower crystallinity of 8% was hydrolyzed faster when compared to PET with 28% crystallinity.
PELLIS A +5 more
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Journal of Polymer Research, 2012
Wide-Angle X-ray Diffraction (WAXD) and Small-Angle X-ray Scattering analyses were carried out to evaluate the evolution of the crystalline and supermolecular structure of poly(ethylene terephthalate) (PET) blended with poly(trimethylene terephthalate) (PTT). The conditions adopted in preparing the PET/PTT 50/50 blend induce transesterification between
Canetti Maurizio, CASTELLANO, MAILA
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Wide-Angle X-ray Diffraction (WAXD) and Small-Angle X-ray Scattering analyses were carried out to evaluate the evolution of the crystalline and supermolecular structure of poly(ethylene terephthalate) (PET) blended with poly(trimethylene terephthalate) (PTT). The conditions adopted in preparing the PET/PTT 50/50 blend induce transesterification between
Canetti Maurizio, CASTELLANO, MAILA
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