Crystal structure of a new form of polyoxymethylene
A new crystalline form of polyoxymethylene is described with an orthorhombic unit cell, space group P 2 1 2 1 2 1 , and lattice constants a = 4.77 A., b = 7.65 A., c = 3.56 A. The chains are helicoidal with the axis of the helix parallel to c . The period of identity of 3.56 A. comprises two monomer...
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| Veröffentlicht in: | Journal of polymer science. Part A. General papers 1963-03, Vol.1 (3), p.965-983 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | A new crystalline form of polyoxymethylene is described with an orthorhombic unit cell, space group
P
2
1
2
1
2
1
, and lattice constants
a
= 4.77 A.,
b
= 7.65 A.,
c
= 3.56 A. The chains are helicoidal with the axis of the helix parallel to
c
. The period of identity of 3.56 A. comprises two monomeric units and one turn of the helix. The lattice of orthorhombic polyoxymethylene is made up of isomorphous helicoidal chains. |
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| ISSN: | 0449-2951 1542-6246 |
| DOI: | 10.1002/pol.1963.100010311 |