ISSN:
0449-296X
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Poly-(4-phenyl-1-butene) was prepared by using a titanium tetrachloride-triethyl-aluminum catalyst. The crystalline polymer melts at 158°C. Double orientation could not be obtained but all the reflections on the x-ray fiber diagram can be indexed on the basis of an hexagonal cell (a = 20.8 A., c (fiber repeat) = 6.61 A.). However the crystal structure proposed does not belong to an hexagonal space group but to the monoclinic (pseudo-orthorhombic) space group Pa (a = 10.4 A., b = 18.0 A., c = 6.61 A.). The 31 helix, common to systems of this type, is consistent with an isotactic (not syndiotactic) configuration for the polymer chain.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1968.150060525
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