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Acoustical studies on polyvinylchloride in dimethylformamide
Author(s) -
Sundaresan B.,
Srinivasarao A.
Publication year - 1994
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1994.210330414
Subject(s) - dimethylformamide , ultrasonic sensor , materials science , polymer chemistry , range (aeronautics) , analytical chemistry (journal) , composite material , acoustics , chemistry , organic chemistry , physics , solvent
Ultrasonic velocity studies were undertaken on solutions of polyvinylchloride (PVC) in dimethylformamide (DMF) in the concentration range 0–3% by weight, at an RF frequency of 2 MHz at three different temperatures, 303 K, 313 K and 323 K. The observed non‐linear increase in ultrasonic velocity with increase of PVC concentration is attributed to the segment–segment interaction which causes molecular association between PVC and DMF.