Incorporation of Dyes into Polystyrene‐<i>block</i>‐poly(4‐vinylpyridine) Nanotemplates

Krenek, Radim; Cimrová, Věra; Stamm, Manfred

doi:10.1002/masy.200850818

Cited by 6 publications

(5 citation statements)

References 10 publications

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“…It is interesting to note that the P4VP chains are bounded to the glassy PS and the properties of the nanostructure is pH sensitive. 54 In addition, other functionalities can be easily introduced by incorporating other species, susceptible to specifically interact with P4VP chain such as, anionic dyes 55 or inorganic salts, as illustrated below.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Thin Film Structure of Block Copolymer–Surfactant Complexes: Strongly Ionic Bonding Polymer Systems

et al. 2012

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We present a structural investigation of thin films of diblock copolymers PS−P4VP in which 4VP forms an ionic bond with a sterically demanding surfactant, bis (2-ethylhexyl) sulfosuccinate acid (AOT). The results depend strongly on the interplay between microphase separation and surfactant ordering. Protonation of the P4VP homopolymer or diblock PS-b-P4VP with AOT leads to a multilayer structure in which the surfactant determines the layer thickness. In thin films of the protonated block copolymer, the segregation between the blocks generates nanostructures with an inplane periodicity defined by the molecular masse of the copolymer and the stoichiometry of the complex. Variation of the composition of the blocks and the molar ratio AOT/pyridine leads to structural transitions: cylinders of (AOT/P4VP) → lamellae → cylinders of PS. Remarkably, regardless of the morphology, the bcp microdomain structure remains orthogonal to the air substrate interface. Finally, we show that hydrolysis of AOT results in the formation of pores with a variable geometry useful for templating two-dimensional inorganic structures.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Thin Film Structure of Block Copolymer–Surfactant Complexes: Strongly Ionic Bonding Polymer Systems

et al. 2012

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“…Optically active SMA nanotemplates were also developed. For this, two different techniques are used for functionalization of PS‐ b ‐P4VP based nanotemplates 40. Either a luminescent additive (e.g., 1‐pyrenemethanol – PyM) is incorporated into the SMA instead of HABA (direct funtionalization).…”

Section: Nanofabricationmentioning

confidence: 99%

“… Normalized photoluminescent emission of 30‐nm films made of: PyM + PSCOOH (solid), PS‐ b ‐P4VP(PyM) (from toluene) without annealing (dash) and after annealing (dot). Excitation wavelength was 345 nm 40. …”

Section: Nanofabricationmentioning

confidence: 99%

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Thin films of block copolymer supramolecular assemblies: Microphase separation and nanofabrication

Böhme

Kuila

Schlörb

et al. 2010

Physica Status Solidi (b)

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Single crystal effect‐field transistors (SCFETs) are fabricated based on single crystal micro‐ribbons of 6H‐pyrrolo[3,2–b:4,5–b´]bis[1,4]benzothiazine and its 6‐substituted derivatives (PBBTZ 1–3). High mobility (3.6 cm2 V−1 s−1) and high stability (no significant decrease in one year) are obtained from the devices. The quantum chemically calculated results on the crystals 1–3 (see figure) agrees well with the experimental data.

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“…For a more precisely controlled dispersion of the dyes with a polymer, an additional interaction is beneficial between two moieties at the molecular level as demonstrated in the recent work by Uda et al [25] in which organic azulene dye molecules are well stabilized in separate nanometer-scale cavities of a polystyrene clathrate crystal. In this regard, self-assembled amphiphilic block copolymer micelles that form polar cores with extended coronas in a non-polar medium [26][27][28] can be convenient and effective for dispersing M-Pc dyes in a nonpolar solvent when the interaction between the M-Pc and the polar block is controlled. Good film formation of the block copolymer micelles based on a spin-coating technique is also beneficial for fabricating a thin polymer film with a well dispersed M-Pc dye.…”

Section: Introductionmentioning

confidence: 99%

Block Copolymer Micelles with Near Infrared Metal Phthalocyanine Dyes for Laser Induced Writing

Acharya¹,

Yoon²,

Park³

et al. 2010

Macromol. Rapid Commun.

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A route has been developed to disperse metal-containing phthalocyanine dyes in a non-polar medium based on amphiphilic block copolymer micelles of poly[styrene-block-(4-vinylpyridine)] (PS-b-P4VP) and poly[styrene-block-(acrylic acid)] (PS-b-PAA) copolymers. Polar P4VP and PAA efficiently encapsulate cobalt(II), manganese(II), and nickel(II) phthalocyanine dyes by axial coordination of nitrogen and µ-oxo bridged dimerization with the transition metals, respectively. Good dispersion of the dyes is confirmed by the linear enhancement of Q-bands in UV-vis absorption spectra with dye concentration. A thin monolayered PS-b-P4VP micelle film that contained a nickel(II) phthalocyanine dye which efficiently adsorbs a laser beam on a localized area to generate a local heat higher than the glass transition temperatures of both blocks. One-dimensional laser writing on the dye-containing film allows the fabrication of a few submicrometer wide line patterns in which the self-assembled nanostructure of the block copolymer is modified by the directional heat arising from laser scanning.

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Incorporation of Dyes into Polystyrene‐block‐poly(4‐vinylpyridine) Nanotemplates

Cited by 6 publications

References 10 publications

Thin Film Structure of Block Copolymer–Surfactant Complexes: Strongly Ionic Bonding Polymer Systems

Thin Film Structure of Block Copolymer–Surfactant Complexes: Strongly Ionic Bonding Polymer Systems

Thin films of block copolymer supramolecular assemblies: Microphase separation and nanofabrication

Block Copolymer Micelles with Near Infrared Metal Phthalocyanine Dyes for Laser Induced Writing

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