Preparation and properties of waterborne polyurethane-urea anionomers. I. The influence of the degree of neutralization and counterion
Abstract
Abstract Two series of waterborne polyurethane–urea anionomers were prepared by a polyaddition reaction with isophorone diisocyanate, poly(tetramethylene oxide) glycol (weight‐average molecular weight = 1000), dimethylol propionic acid (DMPA), and ethylene diamine as chain extenders. Triethylamine (TEA) or 28:1 mol/mol ammonium hydroxide (NH4OH)/cupric hydroxide [Cu(OH)2] was used as a neutralization agent [NH(C2H5) or NH /Cu2+ counterion] for the pendant COOH group of DMPA. The effects of the degree of neutralization and counterion on the particle size of the dispersions, the conductivity, and the antibacterial and mechanical properties of polyurethane–urea anionomer films were investigated. The particle sizes of the two sample series dispersions decreased with an increasing degree of neutralization. Aqueous dispersions of polyurethane–urea anionomers with particle sizes of 30–120 nm were stable for about 3 months. By infrared spectroscopy, it was found that TEA‐based samples (T series) had higher fractions of hydrogen‐bonded carbonyl groups in the ordered region than NH4OH/Cu(OH)2‐based samples (S series). However, the fractions of hydrogen‐bonded carbonyl groups in the disordered region of the S‐series samples were higher than those of the T‐series samples. The conductivities of the S‐series film samples were higher than those of the T‐series samples. However, the T‐series film samples commonly had higher tensile strengths and initial moduli than the S‐series samples. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 2375–2383, 2002
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SMPU ionomers can provide antibacterial activity.
“Aside from the advantageous cyclic thermo-mechanical properties, the additional benefit, which can derive from SMPU ionomers, is antibacterial activity [157,158].”
From Review on the Functional Determinants and Durability of Shape Memory Polymers (2010) · cites this paper as [157]
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Review on the Functional Determinants and Durability of Shape Memory Polymers
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- Authors
- Yang, J., Kong, J., Park, S., Lee, D., & Kim, H.
- Affiliations
- Pusan National University (KR)
- Corresponding author
- Kim, Han‐Do
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2002-09-18
- Volume
- 86
- Issue
- 9
- Pages
- 2375-2383
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W1987431869
- Cited by
- 55
- References
- 16
- Citations by year
- 2025: 2 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 3 · 2020: 1 · 2019: 4 · 2018: 1 · 2017: 3 · 2016: 3 · 2015: 1 · 2014: 2
- FWCI
- 3.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Applied Polymer Science (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Synthesis and Characterization
- Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
- Physical Sciences › Chemistry › Organic Chemistry › Antimicrobial agents and applications
- Keywords
- degree of neutralization, counterions, triethylamine, dimethylolpropionic acid, isophorone diisocyanate, ethylenediamine, aqueous dispersions, particle size, dispersion stability, electrical conductivity, antibacterial films, mechanical properties, polyaddition reaction
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