Transparent hydrophobic durable low moisture permeation poly(fluoroimide acrylate)/SiO2 nanocomposite from solventless photocurable resin system
Journal
Journal of Materials Chemistry
Journal Volume
20
Journal Issue
15
Pages
3084-3091
Date Issued
2010
Author(s)
Abstract
In this article, we report a novel high performance nanocomposite made from environmentally friendly and energy conserving solventless photocurable patternable resin system. The system contains a fluoroimide acrylate oligomer, acrylate monomer, photoinitiator and SiO2 nanoparticles. The fluoroimide acrylate oligomer was synthesized by reacting 2 mole equivalent of 4,4′-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) with 4,4′-(hexafluoroisopropylidene) diamine (6FpDA) first to form fluoroimide dianhydride, and then further reacting with 2 moles of 2-hydroxy ethyl methacrylate (HEMA). The fluoroimide acrylate oligomer was specially designed with carboxylic acid functionality. As compared with bis-phenol A acrylate oligomer, the fluoroimide acrylate oligomer nanocomposite shows an improvement in both physical properties and chemical properties. This new nanocomposite exhibits good cross hatch adhesive strength (>95% on glass) and unusually high hydrophobicity (>140° contact angle). The nanocomposite also shows excellent transparency (>90% transmission at 400-800 nm for 100 μm film), high thermal stability and mechanical durability. The water absorption and the water vapor permeation of this nanocomposite are reduced to at least one quarter of those of the bis-phenol A acrylate nanocomposite. The chemical characteristics of the fluoroimide acrylate and the formation of nanodomains in the nanocomposite play major roles in providing the outstanding performance. © The Royal Society of Chemistry.
SDGs
Other Subjects
2-hydroxyethyl methacrylate; Acrylate monomers; Acrylate oligomers; Adhesive strength; Bisphenols; Chemical characteristic; Cross-hatch; Energy-conserving; Environmentally-friendly; Hexafluoroisopropylidene; High thermal stability; Mechanical durability; Moisture permeation; Nano domain; Photo-initiator; Photocurable; Photocurable resins; Resin systems; Solventless; Water vapor permeation; Carboxylic acids; Chemical properties; Contact angle; Energy conservation; Hydrophobicity; Organic acids; Phenols; Resins; Silicon compounds; Thermogravimetric analysis; Water absorption; Water vapor; Nanocomposites
Type
journal article
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