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Mechanical and surface properties and hydrolytic stability of cycloaliphatic polyester‐based waterborne polyurethanes modified with fluoro oligomer
Author(s) -
Hong Park Sang,
Lee Su Kyoung,
Choi Hee Young,
Lee Eon Mi,
Kim Eun Young,
Lim Chung Hwan,
Lee Dong Woon,
Kim Byung Kyu
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29201
Subject(s) - adipate , oligomer , polyurethane , polyester , materials science , hydrolysis , polymer chemistry , contact angle , ethylene glycol , composite material , chemistry , organic chemistry
Polyurethane dispersions (PUDs) have been designed and synthesized based on different types of soft segments, namely, poly(2,4‐diethyl‐1,5‐pentamethylene adipate) glycol (PDPAD; $\overline {M_n }$ = 1000) and poly(2,4‐diethyl‐1,5‐pentamethylene‐1,4‐cyclohexane dicarboxylate) glycol (PDPCD; $\overline {M_n }$ = 1000), and were subsequently modified with fluoro oligomer (BA‐N fluoroalcohol). It was found that the PDPCD segments improved the hydrolytic stability, whereas the contact angle with water drop was significantly increased with the addition and increasing amount of Zonyl for PDPAD‐based PU and it was marginally increased with PDPCD‐based PU. In addition, the PDPCD provided PUD with enhanced mechanical properties compared with the PDPAD. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009