Shape Stable Poly(vinyl alcohol) and Alginate Cross-Linked Hydrogel under Drying-Rewetting Cycles: Boron Substitution

Cheng-Jui Tsai; Yin-Ru Chang; Duu-Jong Lee

doi:10.1021/acs.iecr.8b03420

Shape Stable Poly(vinyl alcohol) and Alginate Cross-Linked Hydrogel under Drying-Rewetting Cycles: Boron Substitution

Cheng-Jui Tsai
, Yin-Ru Chang
, Duu-Jong Lee^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

15 Citations (Scopus)

Abstract

Hydrogels of poly(vinyl alcohol) (PVA) and alginate that are cross-linked with boric acid (PVA-B) hydrogels can be stable in water when they are further cross-linked with a nucleophile complex that replaces the boron complex. The B(OH)₃ dimer cores, rather than the BO₄^- cores, constitute the skeleton of the PVA-B matrix under neutral or acidic conditions. The nucleophiles SO₄^2-, NO₃^- and H₂PO₄^-, can substitute up to 52, 44, and 59% of the boron cores in the PVA-B matrix to form shape-stable PVA hydrogels with isotactic segments at d:B ratios of 3.0:1, 2.6:1, and 3.5:1, respectively. The boron substitution is proposed to be achieved by allowing nucleophiles to attack carbon atoms that are linked to the B3 complex and replace one B(OH)₃ from the dimer core via Walden inversion mechanisms at 1:1 stoichiometry. Shape-stable PVA-S immobilized copper hexacyanoferrate (CuHCF) hydrogels were synthesized to effectively adsorb cesium (Cs) ions from a water.

Original language	English
Pages (from-to)	14213-14222
Journal	Industrial & Engineering Chemistry Research
Volume	57
Issue number	42
DOIs	https://doi.org/10.1021/acs.iecr.8b03420
Publication status	Published - 24 Oct 2018
Externally published	Yes

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title = "Shape Stable Poly(vinyl alcohol) and Alginate Cross-Linked Hydrogel under Drying-Rewetting Cycles: Boron Substitution",

abstract = "Hydrogels of poly(vinyl alcohol) (PVA) and alginate that are cross-linked with boric acid (PVA-B) hydrogels can be stable in water when they are further cross-linked with a nucleophile complex that replaces the boron complex. The B(OH)3 dimer cores, rather than the BO4- cores, constitute the skeleton of the PVA-B matrix under neutral or acidic conditions. The nucleophiles SO42-, NO3- and H2PO4-, can substitute up to 52, 44, and 59\% of the boron cores in the PVA-B matrix to form shape-stable PVA hydrogels with isotactic segments at d:B ratios of 3.0:1, 2.6:1, and 3.5:1, respectively. The boron substitution is proposed to be achieved by allowing nucleophiles to attack carbon atoms that are linked to the B3 complex and replace one B(OH)3 from the dimer core via Walden inversion mechanisms at 1:1 stoichiometry. Shape-stable PVA-S immobilized copper hexacyanoferrate (CuHCF) hydrogels were synthesized to effectively adsorb cesium (Cs) ions from a water.",

author = "Cheng-Jui Tsai and Yin-Ru Chang and Duu-Jong Lee",

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Shape Stable Poly(vinyl alcohol) and Alginate Cross-Linked Hydrogel under Drying-Rewetting Cycles: Boron Substitution. / Tsai, Cheng-Jui; Chang, Yin-Ru; Lee, Duu-Jong.
In: Industrial & Engineering Chemistry Research, Vol. 57, No. 42, 24.10.2018, p. 14213-14222.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Shape Stable Poly(vinyl alcohol) and Alginate Cross-Linked Hydrogel under Drying-Rewetting Cycles

T2 - Boron Substitution

AU - Tsai, Cheng-Jui

AU - Chang, Yin-Ru

AU - Lee, Duu-Jong

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2018/10/24

Y1 - 2018/10/24

N2 - Hydrogels of poly(vinyl alcohol) (PVA) and alginate that are cross-linked with boric acid (PVA-B) hydrogels can be stable in water when they are further cross-linked with a nucleophile complex that replaces the boron complex. The B(OH)3 dimer cores, rather than the BO4- cores, constitute the skeleton of the PVA-B matrix under neutral or acidic conditions. The nucleophiles SO42-, NO3- and H2PO4-, can substitute up to 52, 44, and 59% of the boron cores in the PVA-B matrix to form shape-stable PVA hydrogels with isotactic segments at d:B ratios of 3.0:1, 2.6:1, and 3.5:1, respectively. The boron substitution is proposed to be achieved by allowing nucleophiles to attack carbon atoms that are linked to the B3 complex and replace one B(OH)3 from the dimer core via Walden inversion mechanisms at 1:1 stoichiometry. Shape-stable PVA-S immobilized copper hexacyanoferrate (CuHCF) hydrogels were synthesized to effectively adsorb cesium (Cs) ions from a water.

AB - Hydrogels of poly(vinyl alcohol) (PVA) and alginate that are cross-linked with boric acid (PVA-B) hydrogels can be stable in water when they are further cross-linked with a nucleophile complex that replaces the boron complex. The B(OH)3 dimer cores, rather than the BO4- cores, constitute the skeleton of the PVA-B matrix under neutral or acidic conditions. The nucleophiles SO42-, NO3- and H2PO4-, can substitute up to 52, 44, and 59% of the boron cores in the PVA-B matrix to form shape-stable PVA hydrogels with isotactic segments at d:B ratios of 3.0:1, 2.6:1, and 3.5:1, respectively. The boron substitution is proposed to be achieved by allowing nucleophiles to attack carbon atoms that are linked to the B3 complex and replace one B(OH)3 from the dimer core via Walden inversion mechanisms at 1:1 stoichiometry. Shape-stable PVA-S immobilized copper hexacyanoferrate (CuHCF) hydrogels were synthesized to effectively adsorb cesium (Cs) ions from a water.

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DO - 10.1021/acs.iecr.8b03420

M3 - RGC 21 - Publication in refereed journal

SN - 0888-5885

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SP - 14213

EP - 14222

JO - Industrial & Engineering Chemistry Research

JF - Industrial & Engineering Chemistry Research

IS - 42

ER -

Shape Stable Poly(vinyl alcohol) and Alginate Cross-Linked Hydrogel under Drying-Rewetting Cycles: Boron Substitution

Abstract

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Correction to: Shape stable poly(vinyl alcohol) and alginate cross- linked hydrogel under drying-rewetting cycles: Boron substitution (Industrial and Engineering Chemistry Research (2018) 57:42 (14213-14222) DOI: 10.1021/acs.iecr.8b03420)

Cite this