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Control over the Structure of Ice and Water by Block Copolymer Additives
Author(s) -
Mastai Yitzhak,
Rudloff Jan,
Cölfen Helmut,
Antonietti Markus
Publication year - 2002
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/1439-7641(20020118)3:1<119::aid-cphc119>3.0.co;2-r
Subject(s) - copolymer , ethylene oxide , antifreeze protein , crystallization , polymer , exothermic reaction , chemical engineering , polymer chemistry , derivative (finance) , materials science , antifreeze , poly ethylene , ice crystals , chemistry , ethylene , organic chemistry , catalysis , biochemistry , physics , optics , economics , financial economics , engineering
Antifreeze proteins protecting against ice crystallization have biomimetic analogons in block copolymers poly(ethylene oxide)–poly[2‐(2‐hydroxyethyl)ethylene] and its partially phosphorylated derivative. Both polymers influence the structure of liquid and solid water to a greater extent than the proteins, as shown by an excess increase of the average water density (as shown in the graph), water viscosity changes, additional exothermic enthalpic transitions close to the freezing point, as well as changes of the ice unit cell.