Polymer and process for making the same

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525247, 525312, 526333, C08F29300, C08F 400/261/06, C08F21612

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active

050989588

ABSTRACT:
Vinyl ether copolymers and a method of preparing the same. The vinyl ether is copolymerized with styrene, alkyl-substituted styrenes, alkoxy-substituted styrenes and mixtures thereof. In the process, a cadmium halide is used with hydrogen iodide or a suitable iodine containing electrophile, as the coinitiator.

REFERENCES:
patent: 3386957 (1968-06-01), Feldhoff et al.
patent: 4866145 (1989-09-01), Dicker
"Living Cationic Polymerization of P-Methoxystyrene by Hydrogen . . . ", Higashimura et al., Poly. Bulletin, 19, 7-11, 1988.
"Hydrogen Iodide/Zinc Iodide: A New Initiating System for Living Cationic . . . ", Sawamoto et al., Macromolecules, 1987, 20, 2693-2697.
"Mechanism of Living Polymerization of Vinyl Ethers By The Hydrogen Iodide . . . ", Higashimura et al., Macromolecules, 1985, 18, 611-616.

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