Chain conformation of polystyrene in bulk by small-angle X-ray scattering
β Scribed by Hyo-Gun Kim
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 467 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
Small-angle x-ray scattering from solid solutions of different molecular weight fractions of partially brominated polystyrene in polystyrene has been studied. The results of this study indicate that polymer chains in bulk have a radius of gyration proportional to the square root of molecular weight, which is consistent with the random coil model. However, these radii are approximately 20% larger than the unperturbed radii deduced by light scattering in dilute solutions.
π SIMILAR VOLUMES
The polymerization of macromonomers provides polymers of extremely high branching density with regular branch length, branching number and branching interval. The intrinsic shape and size of these polymacromonomers were evaluated by small-angle X-ray scattering. The conformation of the backbone and
Carbon forms different oxides, of which carbon monoxide and carbon dioxide are among the most widely studied chemical compounds. The most stable oxide with more than two cumulative double bonds, known as carbon suboxide C 3 O 2 (1; Scheme 1), was synthesized for the first time nearly 100 years ago.