Loading…
Molecular characteristics of triple copolymers of styrene with acrylonitrile and methylmethacrylate in dilute solutions
Viscometry and light scatter have been employed to study dilute solutions of the terpolymers of styrene with acrylonitrile and methylmethacrylate of varied composition. The constants K ν and a of the Mark-Kuhn-Houwink equation have been determined in ethylbenzene, toluene, benzene, chloroform, chlor...
Saved in:
Published in: | Polymer science USSR 1983, Vol.25 (12), p.2889-2898 |
---|---|
Main Authors: | , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Viscometry and light scatter have been employed to study dilute solutions of the terpolymers of styrene with acrylonitrile and methylmethacrylate of varied composition. The constants
K
ν
and
a of the Mark-Kuhn-Houwink equation have been determined in ethylbenzene, toluene, benzene, chloroform, chlorobenzene, methylethylketone, THF, 1,2-dichloroethane, 1,4-dioxane, pyridine, DMF and DMSO at 30±0·1°C. Extrapolation of the linear functions of lim log
K
ν=ƒ (a)
a
a
̊
0·5
and Stockmayer-Fixman gave concordant (within the limits ≈2–7% values of
K
θ
. The unperturbed dimensions of the macromolecules
H
0
2./
Mw
are calculated and compared with those calculated by additivity. It was found that the content in the initial monomer mixture of >44 mole% of acrylonitrile leads to the formation of terpolymers macromolecules with appreciable additional near-action. |
---|---|
ISSN: | 0032-3950 1878-268X |
DOI: | 10.1016/0032-3950(83)90038-2 |