ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary Ultrasonic velocity and density measurements have been made in solutions of polyamic acids of differing molecular structures over extended range of concentration at room temperature. It has been shown that the Rao formalism is applicable to polyamic acid solutions employing Nomoto equation. The consequence of the above finding is discussed for the structural analysis of polymers of complex structures. The flexibility of the polymer chains has also been discussed in terms of the compressibility evaluated from ultrasonic velocity and density data of polymer solution.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00265265
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