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Polymorphism in Syndiotactic Polystyrene

Published online by Cambridge University Press:  06 March 2019

B. G. Landes,
M.T. Malanga and
B.P. Thill
B. G. Landes
Affiliation:
Polymeric Materials Research Center Dow Chemical Co., Midland, MI 48667
M.T. Malanga
Affiliation:
Polymeric Materials Research Center Dow Chemical Co., Midland, MI 48667Designed Thermoplastics Research Dow Chemical Co., Midland., MI 48667
B.P. Thill
Affiliation:
Polymeric Materials Research Center Dow Chemical Co., Midland, MI 48667Designed Thermoplastics Research Dow Chemical Co., Midland., MI 48667
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Polystyrene has been commercially manufactured for over fifty years. Today it enjoys widespread application in appliances, food containers, packaging, toys and thermal insulation. Generally, the term polystyrene is used as a generic descriptor for “he atactic configuration of the polymer chain. In this context the term configuration refers to structural regularity with respect to the substituted carbon atom within the polymer chain. In atactic polystyrene (PS) the phenyl groups are distributed randomly along either side of the polymer backbone. (Figure 1). Since there is no significant degree of long range order along this chain the polymer will not crystallize to any appreciable level.

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Research Article
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Advances in X-Ray Analysis , Volume 33: Thirty-Eighth Annual Conference on Applications of X-ray Analysis, July 31 - August 4, 1989 , 1989, pp. 433 - 443
Copyright
Copyright © International Centre for Diffraction Data 1989

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