The effect of molecular composition and crosslinking on adhesion of a bio-inspired adhesive

J. Yang; J. Keijsers; M. van Heek; A. Stuiver; M.A. Cohen Stuart; M.M.G. Kamperman

doi:10.1039/C4PY01790K

The effect of molecular composition and crosslinking on adhesion of a bio-inspired adhesive

J. Yang, J. Keijsers, M. van Heek, A. Stuiver, M.A. Cohen Stuart, M.M.G. Kamperman^*

^*Corresponding author for this work

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

48 Citations (Scopus)

Abstract

In this article, catechol-functionalized polymers are synthesized by free radical polymerization of dopamine methacrylamide (DMA) and 2-methoxyethyl methacrylate (MEA) at 60 °C in DMF. By varying the DMA content in the polymer, it is found that during free radical polymerization, the catechol groups in DMA react with the propagating radicals, resulting in the formation of a crosslinked structure. We systematically study the effect of DMA content and crosslinking on the adhesion properties of the polymers. Under both dry and wet conditions, maximum adhesion is obtained for a polymer composed of 5 mol% DMA. This polymer exhibits an optimum balance between the catechol content to strengthen the interface, compliance to ensure good contact formation and cohesive strength to resist separation. An increase in the crosslinking degree of the polymer resulted in reduced dry adhesion.

Original language	English
Pages (from-to)	3121-3130
Journal	Polymer Chemistry
Volume	6
DOIs	https://doi.org/10.1039/C4PY01790K
Publication status	Published - 2015

Keywords

polychaete phragmatopoma-californica
density-functional theory
mussel
protein
dopa
mechanisms
surfaces
catechol
glue

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title = "The effect of molecular composition and crosslinking on adhesion of a bio-inspired adhesive",

abstract = "In this article, catechol-functionalized polymers are synthesized by free radical polymerization of dopamine methacrylamide (DMA) and 2-methoxyethyl methacrylate (MEA) at 60 °C in DMF. By varying the DMA content in the polymer, it is found that during free radical polymerization, the catechol groups in DMA react with the propagating radicals, resulting in the formation of a crosslinked structure. We systematically study the effect of DMA content and crosslinking on the adhesion properties of the polymers. Under both dry and wet conditions, maximum adhesion is obtained for a polymer composed of 5 mol% DMA. This polymer exhibits an optimum balance between the catechol content to strengthen the interface, compliance to ensure good contact formation and cohesive strength to resist separation. An increase in the crosslinking degree of the polymer resulted in reduced dry adhesion.",

keywords = "polychaete phragmatopoma-californica, density-functional theory, mussel, protein, dopa, mechanisms, surfaces, catechol, glue",

author = "J. Yang and J. Keijsers and {van Heek}, M. and A. Stuiver and {Cohen Stuart}, M.A. and M.M.G. Kamperman",

year = "2015",

doi = "10.1039/C4PY01790K",

language = "English",

volume = "6",

pages = "3121--3130",

journal = "Polymer Chemistry",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - The effect of molecular composition and crosslinking on adhesion of a bio-inspired adhesive

AU - Yang, J.

AU - Keijsers, J.

AU - van Heek, M.

AU - Stuiver, A.

AU - Cohen Stuart, M.A.

AU - Kamperman, M.M.G.

PY - 2015

Y1 - 2015

N2 - In this article, catechol-functionalized polymers are synthesized by free radical polymerization of dopamine methacrylamide (DMA) and 2-methoxyethyl methacrylate (MEA) at 60 °C in DMF. By varying the DMA content in the polymer, it is found that during free radical polymerization, the catechol groups in DMA react with the propagating radicals, resulting in the formation of a crosslinked structure. We systematically study the effect of DMA content and crosslinking on the adhesion properties of the polymers. Under both dry and wet conditions, maximum adhesion is obtained for a polymer composed of 5 mol% DMA. This polymer exhibits an optimum balance between the catechol content to strengthen the interface, compliance to ensure good contact formation and cohesive strength to resist separation. An increase in the crosslinking degree of the polymer resulted in reduced dry adhesion.

AB - In this article, catechol-functionalized polymers are synthesized by free radical polymerization of dopamine methacrylamide (DMA) and 2-methoxyethyl methacrylate (MEA) at 60 °C in DMF. By varying the DMA content in the polymer, it is found that during free radical polymerization, the catechol groups in DMA react with the propagating radicals, resulting in the formation of a crosslinked structure. We systematically study the effect of DMA content and crosslinking on the adhesion properties of the polymers. Under both dry and wet conditions, maximum adhesion is obtained for a polymer composed of 5 mol% DMA. This polymer exhibits an optimum balance between the catechol content to strengthen the interface, compliance to ensure good contact formation and cohesive strength to resist separation. An increase in the crosslinking degree of the polymer resulted in reduced dry adhesion.

KW - polychaete phragmatopoma-californica

KW - density-functional theory

KW - mussel

KW - protein

KW - dopa

KW - mechanisms

KW - surfaces

KW - catechol

KW - glue

U2 - 10.1039/C4PY01790K

DO - 10.1039/C4PY01790K

M3 - Article

SN - 1759-9954

VL - 6

SP - 3121

EP - 3130

JO - Polymer Chemistry

JF - Polymer Chemistry

ER -

The effect of molecular composition and crosslinking on adhesion of a bio-inspired adhesive

Abstract

Keywords

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