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Aqueous dispersion of polyurethanes from H 12 MDI, PTAd/PPG, and DMPA: Particle size of dispersion and physical properties of emulsion cast films
Author(s) -
Kim Byung Kyu,
Kim Tae Kyoon
Publication year - 1991
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.1991.070430218
Subject(s) - adipate , polypropylene glycol , polyurethane , materials science , emulsion , dispersion (optics) , ethylene glycol , ethylene oxide , aqueous solution , ether , polymer chemistry , particle size , chemical engineering , ionic bonding , polypropylene , ionomer , composite material , chemistry , polymer , organic chemistry , polyethylene glycol , copolymer , ion , physics , optics , engineering
Aqueous dispersions of ionic/nonionic polyurethane (PU) were prepared from hydrogenated diphenylemthane diisocyanate (H 12 MDI), poly(tetramethylene adipate) glycol (PTAd), polypropylene glycol (PPG), monofunctional ethylene‐propylene oxide ether, and dimethylol propionic acid (DMPA). The effects of DMPA, PTAd/PPG ratio, and the average molecular weight of PPG on the state of dispersion, mechanical, and viscoelastic properties of the emulsion cast films were determined using Authosizer, Instron, and Rheovibron.