Summary
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1.
An examination was made of the relation of the rate of polymerization of N-vinylphthalimide and of the molecular weight of the polymer to the conditions of mass or solution polymerization in presence of benzoyl peroxide or 2,2′-azobis[2-methylpropionitrile]. Polyvinylphthalimide of maximum molecular weight and softening point (245–251°) is obtained in the mass at an initiator concentration of less than 0.1% and a polymerization temperature of 85°, and in solution at an initiator concentration of less than 0.5% at 50–65°.
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2.
Polyvinylphthalimide is obtained in a powder form suitable for further processing by polymerization of the monomer in benzene.
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3.
The resulting polymer has adequate hardness, high thermostability (Vicat value 198°), and limited solubility in organic substances.
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Literature cited
U. S. Patent, 2, 276, 840 (1942).
British Patent, 586, 796 (1947).
G. Jones, J. Zomlefer, and K. Hawkins, J. Organ. Chem. 9, 500 (1944).
L. Dennis and R. Shelton, J. Am. Chem. Soc. 52, 3128 (1930).
D. Reynolds and W. Kenyon, J. Am. Chem. Soc. 69, 911 (1947).
J. Lal, and R. Green, J. Polymer Sci. 17, 403 (1955).
S. E. Bresler and S. Ia. Frenkel', J. Tech. Phys. 25, 2163 (1955).
S. Okamura and T. Motoyama, J. Polymer Sci. 17, 429 (1955).
W. Stockmayer and L. Peebles, J. Am. Chem. Soc. 75, 2278 (1953).
A. F. Nikolaev and S. N. Ushakov, Bull. Acad. Sci. USSR, Div. Chem. Sci. (1957), 1235.
S. N. Ushakov and A. F. Nikolaev, Bull. Acad. Sci. USSR, Div. Chem. Sci. (1956), 83.
R. Billmeyer, J. Polymer Sci. 4, 83 (1949).
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Nikolaev, A.F., Ushakov, S.N. & Rozenberg, M.R. Polymerization and copolymerization of N-vinyl compounds Communication 4. Polymerization of N-vinylphthalimide. Russ Chem Bull 7, 939–943 (1958). https://doi.org/10.1007/BF00911344
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DOI: https://doi.org/10.1007/BF00911344