Influence of Cyclodextrin and Temperature on the Kinetics of Free Radical Polymerization of  N ‐Adamantylacrylamide in Water | Zendy

Steffens Christopher | Zendy; Kretschmann Oliver | Zendy; Ritter Helmut | Zendy

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

Author(s) -

Steffens Christopher,

Kretschmann Oliver,

Ritter Helmut

Publication year - 2007

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.200600685

Subject(s) - polymerization , monomer , titration , polymer chemistry , chemistry , kinetics , stoichiometry , radical polymerization , cyclodextrin , precipitation polymerization , propane , polymer , organic chemistry , physics , quantum mechanics

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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