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Thermoresponsive Polymer Induced Sweating Surfaces as an Efficient Way to Passively Cool Buildings
Author(s) -
Rotzetter A. C. C.,
Schumacher C. M.,
Bubenhofer S. B.,
Grass R. N.,
Gerber L. C.,
Zeltner M.,
Stark W. J.
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201202574
Subject(s) - materials science , self healing hydrogels , lower critical solution temperature , polymer , chemical engineering , nanotechnology , composite material , polymer chemistry , engineering , copolymer
Buildings can be effectively cooled by a bioinspired sweating‐like action based on thermoresponsive hydrogels (PNIPAM), which press out their stored water when exceeding the lower critical solution temperature. The surface temperature is reduced by 15 °C compared to that of a conventional hydrogel (pHEMA) and by 25 °C compared to the bare ground.