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Influence of Cyclodextrin and Temperature on the Kinetics of Free Radical Polymerization of N-Adamantylacrylamide in Water

✍ Scribed by Christopher Steffens; Oliver Kretschmann; Helmut Ritter

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
221 KB
Volume
28
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

N‐Adamantylacrylamide (3) was complexed with randomly methylated β‐cyclodextrin (RAMEB) forming the water‐soluble host–guest monomer‐complex 3a. A 1:1 complex stoichiometry was proven by NMR titration (Job's method). We investigated the free radical polymerization of the complex 3a using the water‐soluble azoinitiator 2,2′‐azobis[2‐(2‐imidazolin‐2‐yl)‐propane]dihydrochloride (VA044) at different temperatures. We observed that, below T~crit~ a solution polymerization of 3a takes place. Above T~crit~, a precipitation mechanism leads to an increase in the relative polymerization rate.

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