Shape stable poly(vinyl alcohol) and alginate cross-linked hydrogel with borate anions under dry–rewet cycles

Po-Hsun Wang; Yin-Ru Chang; Duu-Jong Lee

doi:10.1016/j.jtice.2019.07.013

Shape stable poly(vinyl alcohol) and alginate cross-linked hydrogel with borate anions under dry–rewet cycles

Po-Hsun Wang
, 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

8 Citations (Scopus)

Abstract

The poly(vinyl alcohol) (PVA) and alginate hydrogels crosslinked at pH >9 with sodium tetrahydroxyborate (PVA-Bb) hydrogels are shape-stable under repeated dry–rewet cycles. Further crosslinking with sulfate ions to substitute the involved borate complex (PVA-Sb) only moderately enhanced the hydrogel stability. The B(OH)₄⁻ cores constitute the skeleton of the PVA-Bb matrix under alkaline condition, which is different from the B(OH)₃ cores that are noted principally constituting the hydrogel matrix formed under acidic condition. The shape-stable PVA-Bb Prussian blue (PB) immobilized hydrogels are effective adsorbent of Cs⁺ ions from waters. The Cs⁺ permeabilities for PVA-Bb and PVA-Sb hydrogels are close.

Original language	English
Pages (from-to)	85-93
Journal	Journal of the Taiwan Institute of Chemical Engineers
Volume	103
Online published	1 Aug 2019
DOIs	https://doi.org/10.1016/j.jtice.2019.07.013
Publication status	Published - Oct 2019
Externally published	Yes

Research Keywords

Drying and rewetting
PVA
Stability
Walden inversion

Access Output

10.1016/j.jtice.2019.07.013

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{12843a91a95146eba7c70f074f62cf36,

title = "Shape stable poly(vinyl alcohol) and alginate cross-linked hydrogel with borate anions under dry–rewet cycles",

abstract = "The poly(vinyl alcohol) (PVA) and alginate hydrogels crosslinked at pH >9 with sodium tetrahydroxyborate (PVA-Bb) hydrogels are shape-stable under repeated dry–rewet cycles. Further crosslinking with sulfate ions to substitute the involved borate complex (PVA-Sb) only moderately enhanced the hydrogel stability. The B(OH)4− cores constitute the skeleton of the PVA-Bb matrix under alkaline condition, which is different from the B(OH)3 cores that are noted principally constituting the hydrogel matrix formed under acidic condition. The shape-stable PVA-Bb Prussian blue (PB) immobilized hydrogels are effective adsorbent of Cs+ ions from waters. The Cs+ permeabilities for PVA-Bb and PVA-Sb hydrogels are close.",

keywords = "Drying and rewetting, PVA, Stability, Walden inversion",

author = "Po-Hsun Wang and Yin-Ru Chang and Duu-Jong Lee",

year = "2019",

month = oct,

doi = "10.1016/j.jtice.2019.07.013",

language = "English",

volume = "103",

pages = "85--93",

journal = "Journal of the Taiwan Institute of Chemical Engineers",

issn = "1876-1070",

publisher = "Taiwan Institute of Chemical Engineers",

}

TY - JOUR

T1 - Shape stable poly(vinyl alcohol) and alginate cross-linked hydrogel with borate anions under dry–rewet cycles

AU - Wang, Po-Hsun

AU - Chang, Yin-Ru

AU - Lee, Duu-Jong

PY - 2019/10

Y1 - 2019/10

N2 - The poly(vinyl alcohol) (PVA) and alginate hydrogels crosslinked at pH >9 with sodium tetrahydroxyborate (PVA-Bb) hydrogels are shape-stable under repeated dry–rewet cycles. Further crosslinking with sulfate ions to substitute the involved borate complex (PVA-Sb) only moderately enhanced the hydrogel stability. The B(OH)4− cores constitute the skeleton of the PVA-Bb matrix under alkaline condition, which is different from the B(OH)3 cores that are noted principally constituting the hydrogel matrix formed under acidic condition. The shape-stable PVA-Bb Prussian blue (PB) immobilized hydrogels are effective adsorbent of Cs+ ions from waters. The Cs+ permeabilities for PVA-Bb and PVA-Sb hydrogels are close.

AB - The poly(vinyl alcohol) (PVA) and alginate hydrogels crosslinked at pH >9 with sodium tetrahydroxyborate (PVA-Bb) hydrogels are shape-stable under repeated dry–rewet cycles. Further crosslinking with sulfate ions to substitute the involved borate complex (PVA-Sb) only moderately enhanced the hydrogel stability. The B(OH)4− cores constitute the skeleton of the PVA-Bb matrix under alkaline condition, which is different from the B(OH)3 cores that are noted principally constituting the hydrogel matrix formed under acidic condition. The shape-stable PVA-Bb Prussian blue (PB) immobilized hydrogels are effective adsorbent of Cs+ ions from waters. The Cs+ permeabilities for PVA-Bb and PVA-Sb hydrogels are close.

KW - Drying and rewetting

KW - PVA

KW - Stability

KW - Walden inversion

UR - https://www.scopus.com/pages/publications/85069951360

UR - https://www.scopus.com/pages/publications/85069951360#tab=impact

U2 - 10.1016/j.jtice.2019.07.013

DO - 10.1016/j.jtice.2019.07.013

M3 - RGC 21 - Publication in refereed journal

SN - 1876-1070

VL - 103

SP - 85

EP - 93

JO - Journal of the Taiwan Institute of Chemical Engineers

JF - Journal of the Taiwan Institute of Chemical Engineers

ER -

Shape stable poly(vinyl alcohol) and alginate cross-linked hydrogel with borate anions under dry–rewet cycles

Abstract

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this