Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Ernst D. von Meerwall"'
Publikováno v:
The journal of physical chemistry. B. 122(50)
Many natural and synthetic polymers and particles have a rodlike shape, leading to important and intriguing solution behavior, such as high intrinsic viscosities and liquid crystalline phases. Much of what is known about suspensions of rods has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc7e4eb532887131d29d4fbcabb09594
https://pubmed.ncbi.nlm.nih.gov/30511863
https://pubmed.ncbi.nlm.nih.gov/30511863
Autor:
Emmanuel P. Giannelis, Richard A. Vaia, Peter A. Mirau, Hilmar Koerner, Ernst D. von Meerwall, Michael L. Jespersen, Nikhil J. Fernandes
Publikováno v:
Macromolecules. 46:9669-9675
Nanoscale ionic materials (NIMs) are organic–inorganic hybrids prepared from ionically functionalized nanoparticles (NP) neutralized by oligomeric polymer counterions. NIMs are designed to behave as liquids under ambient conditions in the absence o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::690f7520c123000157b6ce0be5d5d721
https://doi.org/10.1021/ma402002a
https://doi.org/10.1021/ma402002a
Publikováno v:
Macromolecules. 42:8864-8869
We have performed dynamic Monte Carlo (MC) simulations and pulsed-gradient diffusion (D) experiments to study the effect of stereochemical composition on diffusion in linear polypropylene (PP) melt...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07a57b7f2f528f4091e3bad9ddda8e4c
https://doi.org/10.1021/ma9016983
https://doi.org/10.1021/ma9016983
Publikováno v:
Rubber Chemistry and Technology. 80:854-872
In an effort to understand the effect of ultrasound on the devulcanization of gum and filled isoprene rubber vulcanizates, solid state NMR 1H transverse relaxation (T2) was employed to analyze rubber molecular mobility. The T2 relaxation decay of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d19f1905b63ab88f83901b3de68842b8
https://doi.org/10.5254/1.3539421
https://doi.org/10.5254/1.3539421
Publikováno v:
Macromolecules. 40:3970-3976
We have used the 1H pulsed-gradient NMR method to augment our earlier diffusion measurements in n-alkane and polyethylene (PE) melts and blends with measurements in 12 additional melts and in three series of blends at T = 150 °C across the full conc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::936b27f127fcf7f278da0d8837d904d2
https://doi.org/10.1021/ma070342q
https://doi.org/10.1021/ma070342q
Publikováno v:
Macromolecules. 40:2002-2007
We have performed pulsed-gradient NMR diffusion (D) measurements of five n-alkanes (24, 28, 36, 44, and 60 carbons) in a polyethylene (PE) host (molecular weight M = 33 kDa) as a function of concentration c (2−10 wt %) at 180 °C. Monte Carlo simul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a8eb26aa4cad5062563948670da7db4
https://doi.org/10.1021/ma062819o
https://doi.org/10.1021/ma062819o
Publikováno v:
Macromolecules. 40:1504-1511
We conduct a comprehensive study of the effect of stereochemistry on the diffusion of isotactic, atactic, and syndiotactic polypropylene (PP), with dynamical Monte Carlo. We simulate realistic two-bead Monte Carlo moves on a stereochemistry-dependent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37e2fb7fd49665ff89d06f997dd2f638
https://doi.org/10.1021/ma062285r
https://doi.org/10.1021/ma062285r
Publikováno v:
Macromolecules. 40:959-966
The dynamics of bidisperse (1K/4.5K) polyethylene (PE) melts in the Rouse-reptation transitional region is studied using a newly designed dynamic Monte Carlo algorithm on a high-coordination (2nnd) lattice. The internal relaxation modes fit the KWW r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c72ae52b1c89e5dcf3be38c70fa747f3
https://doi.org/10.1021/ma062088s
https://doi.org/10.1021/ma062088s
Autor:
J. C. Parr, Joseph L Massey, Chang Kook Hong, Ernst D. von Meerwall, Todd A. Wagler, Avraam I. Isayev
Publikováno v:
Polymer International. 56:860-869
13C NMR solids spectroscopy and transverse relaxation, and 1H relaxation and pulsed-gradient spin-echo self-diffusion measurements at 70 °C were used to study molecular and segmental mobilities in natural rubber before and after sulfur crosslinking,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b795d30c156c1679182a9a6c63ec65f8
https://doi.org/10.1002/pi.2216
https://doi.org/10.1002/pi.2216
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 44:2556-2571
A detailed comparison is made between the experiment, prior simulations by other groups, and our simulation based on a newly designed dynamic Monte Carlo algorithm, on the dynamics of polyethylene (PE) melts. The new algorithm, namely, noncross rando
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38fee44f0d1889df9d8dfc4cf0487338
https://doi.org/10.1002/polb.20911
https://doi.org/10.1002/polb.20911