Abstract
Electron diffraction and low-dose, high-resolution imaging techniques have been used to obtain structural information for a rigid-rod polyyne containing platinum atoms directly bonded into the main chain. The high-resolution images show details of the arrangement of the molecular chains into crystallites ∼50 nm in diameter; dislocations and grain boundaries have also been imaged. A combination of electron diffraction and information derived from image processing of the high-resolution images indicates a unit cell in which parameters of a = 2.08 nm, c = 1.20 nm, and 90° ≤ β ≤ 93° have been measured and where b has tentatively been assigned as ∼1.9 nm. The variations in β relate to improvements in the degree of orientation of the polymer chains that arise from slight stretching of the thin films.
| Original language | English |
|---|---|
| Pages (from-to) | 3473-3479 |
| Number of pages | 7 |
| Journal | Macromolecules |
| Volume | 25 |
| Issue number | 13 |
| Publication status | Published - 1992 |
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ASJC Scopus subject areas
- Materials Chemistry
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Structure of a transition metal-containing polyyne. / Dray, A. E.; Rachel, R.; Saxton, W. O.; Lewis, J.; Khan, M. S.; Donald, A. M.; Friend, R. H.
In: Macromolecules, Vol. 25, No. 13, 1992, p. 3473-3479.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structure of a transition metal-containing polyyne
AU - Dray, A. E.
AU - Rachel, R.
AU - Saxton, W. O.
AU - Lewis, J.
AU - Khan, M. S.
AU - Donald, A. M.
AU - Friend, R. H.
PY - 1992
Y1 - 1992
N2 - Electron diffraction and low-dose, high-resolution imaging techniques have been used to obtain structural information for a rigid-rod polyyne containing platinum atoms directly bonded into the main chain. The high-resolution images show details of the arrangement of the molecular chains into crystallites ∼50 nm in diameter; dislocations and grain boundaries have also been imaged. A combination of electron diffraction and information derived from image processing of the high-resolution images indicates a unit cell in which parameters of a = 2.08 nm, c = 1.20 nm, and 90° ≤ β ≤ 93° have been measured and where b has tentatively been assigned as ∼1.9 nm. The variations in β relate to improvements in the degree of orientation of the polymer chains that arise from slight stretching of the thin films.
AB - Electron diffraction and low-dose, high-resolution imaging techniques have been used to obtain structural information for a rigid-rod polyyne containing platinum atoms directly bonded into the main chain. The high-resolution images show details of the arrangement of the molecular chains into crystallites ∼50 nm in diameter; dislocations and grain boundaries have also been imaged. A combination of electron diffraction and information derived from image processing of the high-resolution images indicates a unit cell in which parameters of a = 2.08 nm, c = 1.20 nm, and 90° ≤ β ≤ 93° have been measured and where b has tentatively been assigned as ∼1.9 nm. The variations in β relate to improvements in the degree of orientation of the polymer chains that arise from slight stretching of the thin films.
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M3 - Article
VL - 25
SP - 3473
EP - 3479
JO - Macromolecules
JF - Macromolecules
SN - 0024-9297
IS - 13
ER -