Zobrazeno 1 - 10
of 120
pro vyhledávání: '"K. Annis"'
Publikováno v:
Estuaries and Coasts. 45:2660-2674
Ribbed mussels, Geukensia demissa, are marsh fauna that are used in coastal management and restoration due to the ecosystem services they provide. Ribbed mussel restoration efforts may be improved with a greater understanding of the environmental dri
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Autor:
Yifu Ding, Jae S. Lee, B. K. Annis, Mark D. Foster, Alexei P. Sokolov, Alexander Kisliuk, J. Hwang
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 40:2431-2439
Changes in the fast dynamics of polybutadiene (PB) with molecular weight and molecular architecture have been investigated by light and neutron scattering spectroscopy. Differences observed in the fast dynamics of various molecules correlate with dif
Autor:
Todd D. Jones, Wendy Fan, Kimberly A. Chaffin, Robert M. Waymouth, B. K. Annis, George D. Wignall, E. W. Hagaman, Frank S. Bates, Man Ho Kim
Publikováno v:
Macromolecules. 35:5061-5068
Small-angle neutron scattering (SANS) has been used to measure the chain dimensions of syndiotactic polypropylene (s-PP) in the melt, using mixtures of 1H- and 2D-labeled molecules. This leads to a segment length 7.6 A normalized to a four-carbon rep
Publikováno v:
The Journal of Chemical Physics. 115:10998-11003
We have determined the static structure factor for a poly(ethylene oxide) (PEO) melt from neutron scattering and atomistic molecular dynamics simulations. The experimental total structure factors for protonated and deuterated samples were found to be
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 39:2852-2859
We used inelastic neutron scattering to probe the low-energy excitations in semicrystalline isotactic polypropylenes with different degrees of crystallinity. The contributions from the amorphous and crystalline regions to the total scattering intensi
Publikováno v:
Macromolecules. 33:7544-7548
Small-angle neutron scattering (SANS) experiments and molecular dynamics (MD) simulations have been performed on poly(ethylene oxide)/LiI solutions at a salt concentration corresponding to ether oxygen:Li = 15:1. Both SANS measurements and simulation
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 38:611-621
Small-angle X-ray scattering (SAXS) was performed on a sample of poly(4,4′- phthaloimidobenzoyldoeicosamethyleneoxycarbonyl) (PEIM-22) as a function of temperature. Wide-angle X-ray diffraction and differential scanning calorimetry were used to fol
Publikováno v:
Polymer. 41:719-724
The thermal behavior and morphology of a diblock copolymer of polystyrene and poly(ferrocenyldimethylsilane) (PFS) ( M n =36 000, φ PS =0.308) have been surveyed using small angle X-ray scattering and transmission electron microscopy. As cast films
Publikováno v:
The Journal of Chemical Physics. 111:1699-1704
Inelastic neutron scattering was used to probe the nature of the boson peak in atactic polypropylene (aPP), head-to-head polypropylene (hhPP), polyisobutylene (PIB) and a 1/1 mass ratio hhPP/PIB blend. Atactic polypropylene is among the most “fragi