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Deuterium Isotope Effect on the Phase Separation of Zipper‐Type Hydrogen‐Bonding Inter‐Polymer Complexes in Solution
Author(s) -
Endo Noriko,
Shirota Hideaki,
Horie Kazuyuki
Publication year - 2001
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 - 10.1002/1521-3927(20010501)22:8<593::aid-marc593>3.0.co;2-k
Subject(s) - polymer , hydrogen bond , deuterium , aqueous solution , acrylic acid , polyelectrolyte , zipper , polymer chemistry , phase (matter) , materials science , hydrogen , acrylamide , chemical engineering , chemistry , molecule , organic chemistry , copolymer , physics , algorithm , quantum mechanics , computer science , engineering
We have investigated the deuterium isotope effect on phase separation in aqueous zipper‐type hydrogen‐bonding polymer solutions. The phase separation temperature of poly(acrylic acid)‐poly(acrylamide) in heavy water is about 16°C higher than that in water. This large isotope effect in the aqueous zipper‐type macromolecular system arises from the polymer‐polymer interaction due to cooperative hydrogen bonds in the polymer‐polymer complex.