The effect of self-assembly on the optical nonlinear absorption of poly (3-hexyl-2, 5-thienylenediethynylene)

Article Abstract:

The intensity-dependent transmittance measurements were performed with a Q-switched Nd:YAG laser at the repetition rate of 10 Hz to study the optical nonlinear absorption properties. The performance revealed that the optical nonlinear absorption properties of poly (3-hexyl-2, 5-thienylenediethynylene) (PHTE) were affected greatly by the self-assembly effect caused by the D-A interaction strengthened pi-stacking interactions among the PHTE molecules.

Laser spectroscopy

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Amphiphilic block copolymers of poly(ethylene oxide) and poly(perfluorohexylethyl methacrylate) at the water surface and their penetration into the lipid monolayer

Article Abstract:

A study was conducted to investigate the interfacial behavior of poly(ethylene oxide) (PEO) and poly(perfluorohexyethyl methacrylate) (PFMA), and to examine their penetration into 1,2-diphytanoyl-sn-glycero-3-phosphocholine (DPhPC) monolayer. The result reveals that surface activity is responsible for the adsorption of PEO- and PFMA-containing amphiphilic block copolymers, at the air and water interface.

Polymers

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Adsorption and thermal stability of ethylene on Ge(100)

Article Abstract:

The adhesion constructions and thermal desorption patterns of C(sub 2)H(sub 4) on Ge(100) using scanning tunneling microscopy (STM) is examined. Ethylene molecules collect in two definite bonding geometries.

Scanning tunneling microscopy, Chemical bonds

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