Preparation of a monolithic and macroporous superabsorbent polymer via a high internal phase Pickering emulsion template

Heewoong Shin; Subeen Kim; Young Kyu Han; Kyu Han Kim; Siyoung Q. Choi

doi:10.1002/app.48133

Preparation of a monolithic and macroporous superabsorbent polymer via a high internal phase Pickering emulsion template

Heewoong Shin, Subeen Kim, Young Kyu Han, Kyu Han Kim, Siyoung Q. Choi

Dept. of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A superabsorbent polymer (SAP) possesses an ability to absorb an aqueous solution up to several hundred times its own weight. To utilize a SAP effectively, a high absorption rate is also essential in addition to a high absorption capability. Herein, using a template based on a high internal phase Pickering emulsion (HIPPE) stabilized by aluminum oxide (Al₂O₃) nanoparticles, we synthesize a SAP with a high absorption rate by forming macropores. In particular, by adjusting three different parameters, the concentration of the crosslinker, the internal volume fraction of the emulsion, and the particle concentration, we successfully formed a HIPPE-templated SAP with a high absorption rate for a saline solution, which was 51.6 g g⁻¹ of the absorbency within 10 s. We confirm that the swelling kinetics is mainly determined by the interconnectivity between the internal macro-pores.

Original language	English
Article number	48133
Journal	Journal of Applied Polymer Science
Volume	136
Issue number	42
DOIs	https://doi.org/10.1002/app.48133
State	Published - 10 Nov 2019

Keywords

high internal phase emulsion (HIPE)
macroporous
Pickering emulsion
polymeric material
superabsorbent polymer (SAP)

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10.1002/app.48133

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title = "Preparation of a monolithic and macroporous superabsorbent polymer via a high internal phase Pickering emulsion template",

abstract = "A superabsorbent polymer (SAP) possesses an ability to absorb an aqueous solution up to several hundred times its own weight. To utilize a SAP effectively, a high absorption rate is also essential in addition to a high absorption capability. Herein, using a template based on a high internal phase Pickering emulsion (HIPPE) stabilized by aluminum oxide (Al2O3) nanoparticles, we synthesize a SAP with a high absorption rate by forming macropores. In particular, by adjusting three different parameters, the concentration of the crosslinker, the internal volume fraction of the emulsion, and the particle concentration, we successfully formed a HIPPE-templated SAP with a high absorption rate for a saline solution, which was 51.6 g g−1 of the absorbency within 10 s. We confirm that the swelling kinetics is mainly determined by the interconnectivity between the internal macro-pores.",

keywords = "high internal phase emulsion (HIPE), macroporous, Pickering emulsion, polymeric material, superabsorbent polymer (SAP)",

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T1 - Preparation of a monolithic and macroporous superabsorbent polymer via a high internal phase Pickering emulsion template

AU - Shin, Heewoong

AU - Kim, Subeen

AU - Han, Young Kyu

AU - Kim, Kyu Han

AU - Choi, Siyoung Q.

PY - 2019/11/10

Y1 - 2019/11/10

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AB - A superabsorbent polymer (SAP) possesses an ability to absorb an aqueous solution up to several hundred times its own weight. To utilize a SAP effectively, a high absorption rate is also essential in addition to a high absorption capability. Herein, using a template based on a high internal phase Pickering emulsion (HIPPE) stabilized by aluminum oxide (Al2O3) nanoparticles, we synthesize a SAP with a high absorption rate by forming macropores. In particular, by adjusting three different parameters, the concentration of the crosslinker, the internal volume fraction of the emulsion, and the particle concentration, we successfully formed a HIPPE-templated SAP with a high absorption rate for a saline solution, which was 51.6 g g−1 of the absorbency within 10 s. We confirm that the swelling kinetics is mainly determined by the interconnectivity between the internal macro-pores.

KW - high internal phase emulsion (HIPE)

KW - macroporous

KW - Pickering emulsion

KW - polymeric material

KW - superabsorbent polymer (SAP)

UR - https://www.scopus.com/pages/publications/85067482668

U2 - 10.1002/app.48133

DO - 10.1002/app.48133

M3 - Article

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SN - 0021-8995

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JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 42

M1 - 48133

ER -

Preparation of a monolithic and macroporous superabsorbent polymer via a high internal phase Pickering emulsion template

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Keywords

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