Effect of the crosslinker nature (hyperbranched vs linear) on the structure of acrylic/silicone amphiphilic networks used for contact lenses
Silicone contact lenses are composed of amphiphilic polymer `co-networks¿ (APCN) mixing acrylic hydrogels with another (disconnected) silicone network. Silicone hydrogels show higher oxygen permeability than pure hydrogel contact lenses, due to the mobility and low cohesive energy of Si-O groups within the silicone backbone. However, the introduction of such silicone polymers reduces the hydrophilicity and hence the water content of the contact lenses, and also their wettability. The addition of hyperbranched polyglycerol (HPG) to the formulation of silicone hydrogel contact lenses may help to equilibrate the properties of oxygen permeability and water content, while also acting as a crosslinker. Thus it is necessary to establish the relationship between the structure of the hydrogel network at nanoscale and the oxygen permeability in order to know whether the silicone and hydrophilic domains will have a competitive or a synergic interaction.
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The recommended format for citing this dataset in a research publication is in the following format:
SANDRE Olivier; Barbara Farias-Mancilla; HARRISSON Simon; JAGU Romain and PORCAR Lionel. (2023). Effect of the crosslinker nature (hyperbranched vs linear) on the structure of acrylic/silicone amphiphilic networks used for contact lenses. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-2140
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