Microstructure of Polymers by Tritium Autoradiography
- 6 December 1963
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 142 (3597) , 1316-1318
- https://doi.org/10.1126/science.142.3597.1316
Abstract
Polystyrene, polypropylene, and polyethylene, containing tritiumlabeled additives and crystallized in thin films, were examined with autoradiographic stripping film. In the structures formed by isotactic polystyrene, tritiated atactic polymer concentrated in specific patterns in the outer regions. Polypropylene spherulites showed marked differences in the distribution of the tritiated additive, dilauryl thiodipropionate, whenever their optical properties also differed. Autoradiographs of polyethylene spherulites containing low molecular weight tritiated polyethylene exhibited concentric ring patterns similar to those observed on viewing the polymer film in a polarizing microscope.Keywords
This publication has 4 references indexed in Scilit:
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- Spherulitic Crystallization in PolypropyleneJournal of Applied Physics, 1959
- The stripping-film technique of autoradiographyThe International Journal of Applied Radiation and Isotopes, 1956
- Tritium in RadioautographyScience, 1951