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Cha, Chaenyung
Integrative Biomaterials Engineering
Research Interests
  • Biopolymer, nanocomposites, microfabrication, tissue engineering, drug delivery

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Aziridine-Capped Poly(ethylene glycol) Brush Copolymers with Tunable Architecture as Versatile Cross-Linkers for Adhesives

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Title
Aziridine-Capped Poly(ethylene glycol) Brush Copolymers with Tunable Architecture as Versatile Cross-Linkers for Adhesives
Author
Hong, JisuKwon, YonghwanKwon, Min SangCha, Chaenyung
Issue Date
2022-03
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED POLYMER MATERIALS, v.4, no.3, pp.2105 - 2115
Abstract
Controlling adhesive and cohesive properties in a refined manner is paramount to developing high-performance adhesives. Therefore, developing and implementing cross-linkers have become a major focus in adhesive research, but most conventional cross-linkers are small molecules or oligomers with limited functionality. Herein, a brush copolymer consisting of varying lengths and densities of the aziridine-capped poly(ethylene glycol) (AzPEG) brush, termed P(AzPEG), is presented for use as a multifunctional polymeric cross-linker for carboxylate-containing acrylic adhesives. The density and length of the AzPEG brush, with respect to the total brush, are controlled conveniently by the concentration and molecular weight of the AzPEG acrylate monomer, respectively. In addition, the use of amphiphilic PEG also makes it possible for use in a variety of solvents. Using poly(EHA-co-AA) and poly(EHA-co-BA-co-MMA-co-AA-co-HEMA) as solvent and waterborne acrylic adhesives, respectively, their mechanical and adhesive properties are effectively controlled by P(AzPEG) with varying densities and lengths of the AzPEG brush without the need for a substantial change in concentration. These findings certainly show the advantages of brush copolymer-based cross-linkers for adhesives.
URI
https://scholarworks.unist.ac.kr/handle/201301/58148
URL
https://pubs.acs.org/doi/full/10.1021/acsapm.1c01894
DOI
10.1021/acsapm.1c01894
ISSN
2637-6105
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