Highly Oriented Gold/Nanoclay–Polymer Nanocomposites for Flexible Gas Barrier Films

Abstract

Layer-by-layer (LBL) assembly, which uses electronic and ionic intermolecular bonding under nonvacuum conditions, is a promising technology for fabricating gas barrier films owing to its simple processing and easy formation of a multilayer structure. In this research, nanoclay-polymer multilayers of Na(+)-montmorillonite (Na-MMT) were fabricated. Particularly, the addition of AuCl3 on fabricated MMT layers caused a reaction with the surface silanol functional groups (Si-O-H) of the MMT platelets, resulting in the formation of Au2O3 on the MMT-polymer multilayers. The Au2O3 filled the vacancies between the MMT platelets and linked the MMT platelets together, thus forming a gas barrier film that reduced the water vapor transmission rate (WVTR) to 3.2 × 10(-3) g m(-2) day(-1). AuCl3-treated MMT-polymer multilayers thus have the potential to be utilized for manufacturing gas barrier films for flexible electronics on a large scale.

Enhanced mechanical properties and fire retardancy of polyamide 6 nanocomposites based on interdigitated crystalline montmorillonite–melamine cyanurate

“…Polymer–clay nanocomposites (PCNs) have attracted considerable academic and commercial interest over the past 3 decades because of their enhanced mechanical properties, gas‐barrier resistance, thermal stability, fire retardancy, and simple polymer recycling . The properties of PCNs are all quite dependent on their dispersion.…”

Influence of N-alkyl and α-substitutions on the thermal behaviour of H-bonded interpolymer complexes based on polymers with acrylamide or lactame groups and poly(4-vinylphenol)

“…Hydrogen-bonded IPCs, as a bulk material or as a thin polymeric multilayer, have renewed the interest of the researchers due to their latest predicted applications for drug deliveringor gas-barrier multilayer thin films, especially those based on poly(acrylic acid)(PAA) [6][7][8][9]. Poly(4-vinylphenol) (PVPh) has been less studied, compared with PAA, but is a good candidate to form hydrogen bonded IPCs since it is able to interact with proton accepting functional groups forming Hbonds.…”

Visible‐Light‐Driven Production of Poly(α‐terthiophene)–Au Nanoparticle Functional Hybrid Material

“…The incorporation of metal particles of suitable shape and size onto such polymers is known to increase the charge separation . The functional properties of these composite materials largely depends on the size, shape, and distribution of the nanoparticles in the polymer network and nature of the polymer . The controlled growth of metal nanoparticles of desired shape and size is a challenging task.…”