Surface-Grafted, Covalently Cross-Linked Hydrogel Brushes with Tunable Interfacial and Bulk Properties

Detailed description on the integration of the IR bands, calibration of cross-linking degrees, the influence of surface roughness on the contact angle and microtribology of PAAm films

Ang Li

2011

Scholarcy highlights

  • Detailed description on the integration of the IR bands, calibration of cross-linking degrees, the influence of surface roughness on the contact angle and microtribology of PAAm films
  • The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online
  • Thin films of poly(acrylamide) brushes and covalently cross-linked hydrogel brushes were grown from iniferter-functionalized silicon substrates by UVLED-initiated photopolymerization and their properties subsequently studied by means of a variety of analytical methods
  • PAAm covalently cross-linked hydrogel brushes were prepared by feeding trace amounts of the cross-linker bis(acrylamide) into the reaction vessel
  • Cross-linked hydrogel brushes displayed higher Young’s moduli and coefficients of friction, when compared to the grafted polymer-brush analogues. These hydrogel brushes present an opportunity for readily tailoring physical properties, especially as they allow tuning of the physical characteristics of surfaces while maintaining the interfacial chemical composition nearly constant
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