ISSN:
0360-6376
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
SAXS measurements on dilute solutions of polyisobutene in n-hexane (Mν = 25,600-3.55 × 106, c 〈 53 g/liter) were carried out by combining conventional slit collimation with the new cone collimation technique. With a fractionated sample (Mν = 25,600; U 〈 0.2) the radius of gyration (R = 48 Å), the cross-sectional radius of gyration (Rq = 3.9 Å), the molecular weight per unit length (M/L = 22.8 Å-1), and the Porod persistence length (a* = 8.1 Å) are found. The persistence length appears to be dependent on the molecular weight. The partial specific volume ν of polyisobutene in n-hexane also depends on the molecular weight according to ν = 1.025 + 105/Mν (cm3/g).
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1979.170170303
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