Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Mary J. Hill"'
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 41:1384-1392
In previous studies, we found that Young's moduli of quenched isotactic polypropylene/high-density polyethylene (iPP/HDPE) exceeded the upper bound, calculated from the Voigt model, with the moduli of the quenched homopolymers as those of the two com
Publikováno v:
Polymer. 43:891-898
Crystals , grown from solution, of the monodisperse 5-amide nylon 6 oligomer (4.6 nm long) have been investigated using X-ray diffraction and electron microscopy. If the crystals are prepared by adding the miscible non-solvent 1,4 dioxane to a soluti
Autor:
Ch. Hübner, D. Bamford, Günter Dlubek, Th. Lüpke, K. Petters, Mary J. Hill, J Stejny, M A Alam
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 40:65-81
High-quality positron lifetime measurements (70 million total counts) are reported for polyethylenes (PEs) of different crystallinities (Xc = 3–82%). The specific volumes of the crystalline and amorphous phases (Vc and Va, respectively) were estima
Autor:
J. van Ruiten, Bert J. Kip, Mary J. Hill, Peter J. Barham, A. van der Pol, R. Ottjes, R.L. Morgan
Publikováno v:
Polymer. 42:2121-2135
The origin of morphological phase structures in blends of a linear deuterated polyethylene and a hydrogenous branched polyethylene has been investigated using Raman imaging. Blends were crystallized to produce samples with large domains that are rich
Publikováno v:
Macromolecules. 34:1673-1676
X-ray and electron diffraction studies on solution-grown crystals of high-fidelity, monodisperse nylon 6 oligoamides have provided the opportunity to measure, by experiment, the intersheet chain-ax...
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 39:1404-1414
Young's moduli of a series of quenched isotactic polypropylene/high-density polyethylene blends were measured. The moduli of many of the blends exceeded the upper bound, calculated from the parallel model with the moduli of the two quenched homopolym
Publikováno v:
Polymer. 41:8761-8773
Crystals of the long, uniform alkane, C294H590 can be grown from dilute solutions in a range of different integer folded forms. At suitable temperatures, folded crystals will thicken from one folded form to another. The morphology of the crystals as
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 38:1209-1221
Chain-folded lamellar crystals of the ten even-even nylons: 6 6, 8 6, 8 8, 10 6, 10 8, 10 10, 12 6, 12 8, 12 10, and 12 12 have been grown from solution and their morphologies and structures studied using transmission electron microscopy, both imagin
Publikováno v:
Macromolecules. 33:4146-4154
Lamellar crystals of the monodisperse 10-amide nylon 6 oligomer were prepared from solution. The crystal structure and morphology were studied using electron microscopy (diffraction and imaging) from individual lamella and X-ray diffraction data from
Publikováno v:
Macromolecules. 33:2642-2650
A wide-ranging and varied group of 31 even−even nylons, in the form of adjacent, re-entry chain-folded lamellar crystals, are compared and contrasted with respect to their room-temperature structures and behavior on heating. In this comparison, var