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Solubilities, viscosities and unperturbed dimensions of poly (2,6‐diisopropylphenyl methacrylate)
Author(s) -
Gargallo Ligia,
Hamidi Nasrolah,
Radić Deodato
Publication year - 1991
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.4990240102
Subject(s) - rigidity (electromagnetism) , polymer , intrinsic viscosity , solvent , polymer chemistry , methacrylate , size exclusion chromatography , materials science , thermodynamics , viscosity , copolymer , chemistry , organic chemistry , composite material , physics , enzyme
The dilute solution properties of poly(2,6‐diisopropylphenyl methacrylate) (PDPP) in various solvents were studied by viscosity, exclusion chromatography and osmotic pressure measurements. The Mark‐Houwink‐Kuhn‐Sakurada relationships were established. The unperturbed dimensions, the rigidity factor σ, the characteristic ratio C ∞ and the thermodynamic parameters were determined using the Stockmayer‐Fixman equation and from data in theta solvent (binary mixture). The rigidity factor of PDPP is abnormally high. The conformational behaviour of this polymer is analysed in terms of the effect of the side chain structure. The results are compared with other polymers of the same series.