Reaction of polymethacrylic acid with polyvinyl alcohol in concentrated aqueous solutions

Okhrimenko, Ivan; D'yakonova, E.B.

doi:10.1016/0032-3950(64)90607-0

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…Concentrated PVA and PMAA in water solution could react with each other without a catalyst and form hydrogels . The gelation occurred while mixing two concentrated PVA and PMAA water solutions without any catalyst or cross‐linkers.…”

Section: Resultsmentioning

confidence: 99%

A Robust, Air‐Stable and Recyclable Hydrogel Toward Stretchable Electronic Device Applications

Hsu

Huang

et al. 2018

Macro Materials & Eng

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A novel hygroscopic hydrogel with air‐stable, recyclable, and stretchable properties is demonstrated in this study. The hydrogel is prepared by the simple polymer blends of two hydrophilic polymers, poly(vinyl alcohol) (PVA) and poly(methacrylic acid) (PMAA), using ethylene glycol as a hygroscopic solvent and cross‐linker. The PVA/PMAA hydrogel is highly stretchable after absorbing water molecules from the ambient environment as plasticizers. The hydrogel shows a high mechanical strength with a Young’s modulus of 0.75 MPa, linear region of 42%, and elongation of over 550% at break, and could be hydrolyzed by water then recast for high quality film for many times. The unique advantages of this hydrogel is further demonstrated by fabricating a stretchable organic memory device using the deoxyribonucleic acid as the memory layer on top of the hydrogel substrate. The device exhibits a write‐once‐read‐many‐times type behavior with a memory ratio of 104, retention time over 105 s, and mechanical durability over 30% strain.

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Section: Resultsmentioning

confidence: 99%

A Robust, Air‐Stable and Recyclable Hydrogel Toward Stretchable Electronic Device Applications

Hsu

Huang

et al. 2018

Macro Materials & Eng

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show abstract

“…The highest light scattering from polymer solutions is shown at a 3:7 ratio of PMAA:PVA. These two polymers are known to interact in an equimolecular ratio which corresponds to the ratio of 2.5:7.5-1.7:8.3 between PMAA and PVA [2]. PAA-PVA also shows similar behavior as PMAA-PVA, but light scattering is lower than PMAA-PVA.…”

Section: Resultsmentioning

confidence: 99%

Effect of Polymer Compatibility on the Binder Migration during Spray Drying and Compaction Behavior

Kim

Carty

et al. 2007

MSF

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Granular feedstock for dry pressing is prepared by spray drying oxide powders with polymeric additives. The interactions between polymeric additives in suspension or during drying are usually considered negligible. However, recent studies demonstrate that interactions between polymers usually do occur and can adversely affect product performance. Flory-Huggins calculations predict phase separation of Na-PMAA and Na-PAA with PVA and homogeneous mixing of Na-silicate with PVA. These predictions were confirmed by the light scattering studies on polymer solutions and morphology studies on dried polymer solutions. This reveals that the interaction between polymers can lead to either a homogeneous or phase-separated solution, depending on the functional groups and chain length of polymers. PVA binder in spray-dried granules is stained and its location within the spray dried granule is observed verifying the effect of other polymers on binder migration and case-hardening of spray dried granules. The results indicate polymeric additives that prevent binder migration, potentially eliminating case-hardening in spray dried granules and the subsequent problems observed during compaction.

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The electrical conductivity and viscosity of mixtures of aqueous solutions of poly(methacrylic acid) and poly(vinyl alcohol)

Okhrimenko¹,

Yefremov²,

D'yakonova³

et al. 1966

Polymer Science U.S.S.R.

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Reaction of polymethacrylic acid with polyvinyl alcohol in concentrated aqueous solutions

Cited by 6 publications

References 1 publication

A Robust, Air‐Stable and Recyclable Hydrogel Toward Stretchable Electronic Device Applications

A Robust, Air‐Stable and Recyclable Hydrogel Toward Stretchable Electronic Device Applications

Effect of Polymer Compatibility on the Binder Migration during Spray Drying and Compaction Behavior

The electrical conductivity and viscosity of mixtures of aqueous solutions of poly(methacrylic acid) and poly(vinyl alcohol)

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