Solvent effect on radical polymerization of butyl acrylate
- 1 June 1982
- journal article
- research article
- Published by Wiley in Journal of Polymer Science: Polymer Chemistry Edition
- Vol. 20 (6) , 1489-1496
- https://doi.org/10.1002/pol.1982.170200610
Abstract
The propagation and termination rate constants kp and kt for the radical polymerization of butyl acrylate initiated by biacetyl have been measured by using the rotating‐sector method, in various solvents at 30°C. The value of kp and initiation rate Ri varied with solvents, while the value of kt did not change with solvents except for benzonitrile. The variation of kp with aromatic solvents has a trend against Hammett σp of the solvent substituents similar to that for methyl methacrylate or phenyl methacrylate except for the value in benzonitrile, when it is larger than the variation for methyl methacrylate or phenyl methacrylate. The larger variation of kp for butyl acrylate is compatible with the view that the origin of the solvent effect lies in complex formation between the propagating radical and aromatic solvent molecules. The exceptional decrease in kp and kt in benzonitrile is explained by a contraction of the poly(butyl acrylate) chain in the poor solvent.Keywords
This publication has 19 references indexed in Scilit:
- Solvent Effects on Radical Polymerization of Vinyl Benzoate and Phenyl MethacrylateMacromolecules, 1977
- Reactivities of acrylates and methacrylatesJournal of Polymer Science Part B: Polymer Letters, 1967
- Über den Lösungsmitteleinfluß bei der Radikalpolymerisation. IIDie Makromolekulare Chemie, 1963
- Lösungsmitteleffekte bei der radikalpolymerisation I. Beeinflussung der startgeschwindigkeit bei der polymerisation von styrol mit AIBN als initiatorDie Makromolekulare Chemie, 1962
- A dilatometric method of following the non-stationary state of chemical reactions. Part 2.—Evaluation of the velocity coefficients for the early stages of the polymerization of methyl acrylateTransactions of the Faraday Society, 1958
- Preparation and Polymerization of Aryl Methacrylates and N-ArylmethacrylamidesJournal of the American Chemical Society, 1952
- Rate Constants in Free Radical Polymerizations. IV. Methyl Acrylate1Journal of the American Chemical Society, 1951
- A dielectric constant method of following the non-stationary state in polymerization - III. The determination of rates of polymerization and of radical lifetimesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1951
- Determination of the velocity coefficients for polymerization processes. The polymerization of butyl acrylateTransactions of the Faraday Society, 1949
- Polymers of the α-Haloacrylic Acids and their Derivatives1Journal of the American Chemical Society, 1940