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  4. Amphiphilic Thermoresponsive Poly(Hydroxyaminoethers) as Effective Emulsifiers for Preparation of Waterborne Epoxy Resins
 
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Amphiphilic Thermoresponsive Poly(Hydroxyaminoethers) as Effective Emulsifiers for Preparation of Waterborne Epoxy Resins

Journal
Macromolecular Materials and Engineering
Date Issued
2021
Author(s)
Huang Y.-C
Wang L.-T
Hsu S.-W
Lin T.-F
Liao Y.-C
Chiu W.-Y
Lin H.-W
Wu C.-H
Jeng R.-J
YING-CHIH LIAO  
RU-JONG JENG  
SHIH-HUANG TUNG  
DOI
10.1002/mame.202100668
URI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121632865&doi=10.1002%2fmame.202100668&partnerID=40&md5=8613d5992c9b8f53e96aa8d211132365
https://scholars.lib.ntu.edu.tw/handle/123456789/598287
Abstract
Amphiphilic poly(hydroxyaminoethers) (PHAEs) with thermoresponsive solubility in aqueous solutions are developed in this study. Through the control of stoichiometric ratios of functional groups and the reaction temperature, a series of PHAEs with different hydrophilic segments is synthesized, as evidenced by proton nuclear magnetic resonance (1H-NMR) and Fourier transform infrared (FT-IR) spectroscopy. These PHAEs could be dissolved in aqueous solutions and exhibit the thermal phase transitions with lower critical solution temperatures (LCSTs) due to the hydrogen bonding between the hydrophilic segments and water, as confirmed by differential scanning calorimetry (DSC). In addition, the hydrophilic-lipophilic balance (HLB) values suggest that the PHAEs are more hydrophilic amphiphiles and suitable for use as oil-in-water emulsifiers. Consequently, commercially available epoxy resins can be successfully stabilized by the PHAEs in water to form stable emulsions. These crosslinkable waterborne epoxy resins show good thermal and resistance properties, and the feasibility in anticorrosion coating applications for steel surfaces is demonstrated. ? 2021 Wiley-VCH GmbH
Subjects
corrosion resistance
poly(hydroxyaminoethers)
reversible solubility
waterborne epoxy resins
Corrosion resistant coatings
Differential scanning calorimetry
Epoxy resins
Fourier series
Fourier transform infrared spectroscopy
Hydrogen bonds
Hydrophilicity
Nuclear magnetic resonance
Nuclear magnetic resonance spectroscopy
Solubility
Amphiphilics
Hydrophilic segments
Poly(hydroxyaminoether)
Proton nuclear magnetic resonance
Reaction temperature
Reversible solubility
Stoichiometric ratio
Synthesised
Thermo-responsive
Water-borne epoxy resins
Corrosion resistance
Type
journal article

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