Honeycomb-patterned fluorescent films fabricated by self-assembly of surfactant-assisted porphyrin/polymer composites.

Honeycomb-patterned photoluminescent films fabricated by self-assembly of hyperbranched polymers.

Use of Minimal Free Energy and Self-Assembly To Form Shapes

Patterned self-assembled monolayers (SAMs) of alkanethiolates on gold films were used as constraining elements in forming shapes, in a strategy based on minimizing interfacial free energy. Circular right cylinders, catenoids, and other related shapes having centimeter dimensions were formed from poly(dimethylsi1oxane) (PDMS) in a system comprising patterned SAMs and a n aqueous solution of sodi...

Effect of Carbon Nanotube and Surfactant on Processing, Mechanical, Electrical and EMI-Shielding of Epoxy Composites

Dispersing nanoparticles in a polymer matrix is intrinsically challenging due to unfavorable entropic interactions between the matrix and the nanoparticle. In this research dispersion of nanoparticles in polymer matrix was studied and the effect of dispersion on properties was investigated. The properties of polymer composite depend on the type, size, shape, concentration of nanoparticles, and ...

Convective self-assembly to deposit supported ultra-thin mesoporous silica films

For practical consideration in applying mesoporous films for sensors, it is ideal to fabricate thinner films to achieve fast transport and therefore rapid response. Here we report a new, facile method to deposit mesoporous silica films with thickness less than 100 nm through combining convective self-assembly and surfactant/silica self-assembly. Through an interfacial capillarity defined in the...

Fabrication of honeycomb-patterned porous films from PS-b-PNIPAM amphiphilic diblock copolymers synthesized via RITP.

Poly(styrene)-b-poly(N-isopropylacrylamide) (PS-b-PNIPAM) amphiphilic diblock copolymers were synthesized via reverse iodine transfer polymerization (RITP) firstly. And then the honeycomb structured porous films were fabricated by drop the amphiphilic diblock copolymer solutions on glass substrates. The porous films were characterized using field emission scanning electron microscopy (FESEM) an...