Stretching and folding of 2-nanometer hydrocarbon rods.
Stretching and folding of 2-nanometer hydrocarbon rods.
复制标题
2纳米碳氢棒的拉伸和折叠
DOI:
10.1039/c4sm00508b
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发表时间:
2014
期刊:
影响因子:
3.4
通讯作者:
Martin A. Suhm
中科院分区:
文献类型:
--
作者:
Nils O. B. Lüttschwager;Martin A. Suhm
Linear alkanes CnH2n+2 in vacuum isolation are finite models for an infinite polyethylene chain. Using spontaneous Raman scattering in supersonic jet expansions for n = 13–21 in different spectral ranges, we determine the minimal chain length nh for the cohesion-driven folding of the preferred extended all-trans conformation into a hairpin structure. We treat fully stretched all-trans alkanes as molecular “nanorods” and derive Young's modulus E for the stretching of an isolated single-strand polyethylene fibre by extrapolating the longitudinal acoustic mode to infinite chain length. Two key quality parameters for accurate intra- and intermolecular force fields of hydrocarbons (nh = 18 ± 1, E = 305 ± 5 GPa) are thus derived with high accuracy from experimental spectroscopy.
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DOI:
10.1002/pol.1985.180230612
发表时间:
1985
期刊:
Journal of Polymer Science Part B
影响因子:
--
作者:
Bruno Fanconi;J. Rabolt
通讯作者:
J. Rabolt
影响因子:
4.4
作者:
R. G. Snyder;H. L. Strauss;R. Alamo;L. Mandelkern
通讯作者:
L. Mandelkern
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
A. Karpfen
通讯作者:
A. Karpfen
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
R. Eckel;M. Buback;G. Strobl
通讯作者:
G. Strobl
DOI:
--
发表时间:
1976
期刊:
影响因子:
--
作者:
G. Strobl;R. Eckel
通讯作者:
R. Eckel