Surface Modification via Reactive Polymer Interlayers

Beyer, Dierk; Bohanon, T. M.; Knoll, Wolfgang; Ringsdorf, Helmut; Elender, G.; Sackmann, E.

doi:10.1021/la950459k

Cited by 59 publications

(52 citation statements)

References 21 publications

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“…The group of Ringsdorf used amide, urea, and urethane bonds to obtain crosslinked films as soon as 1996. 169 Since the covalent reaction must take place rapidly and specifically at each deposition step, strategies involving click reactions are very popular: oxyme chemistry was introduced in 2002 by Chan et al, 170 azlactone chemistry was used by Lynn's group in 2007, 171173 and the HuisgenSharpless click reaction was first used by Caruso and co-workers in 2006. 174 In that case, the Huisgen cycloaddition was achieved by using alkyne and azide bearing PAA in the presence of a copper(II)ascorbate solution used to generate the required Cu(I) catalyst.…”

Section: History Of Layer-by-layermentioning

confidence: 99%

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

et al. 2013

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Materials fabrication with nanoscale structural precision based on bottom-up-type self-assembly has become more important in various current disciplines in chemistry including materials chemistry, organic chemistry, physical chemistry, analytical chemistry, biochemistry, colloid and surface chemistry, and supramolecular chemistry. Although the design of new materials based on nanoscale self-assembly is anticipated as a key concept, preparing complete three-dimensional structures at nanoscale precision remains a difficult target using current technologies. Rather, dimension-reduced approaches such as layering of two-dimensional nanostructures into precisely controlled lamellar nanomaterials are currently achievable. In particular, layer-by-layer (LbL) assembly is known as a highly versatile method for fabrication of controlled layered structures from various kinds of component materials using very simple, inexpensive, and rapid procedures. Therefore, fabrication of multilayer films through the LbL deposition process has attracted growing interest from various research communities. The high versatility and flexibility of LbL assembly is continuously creating new concepts, new materials, new procedures, and new applications. In this highlight review, we focus on nanoarchitectonics by LbL assembly. After an initial introduction on the invention and a brief history of the LbL assembly technique, innovations and the evolution of the technique are described based mainly on recent examples, which are categorized into two sections: (i) developments in methodology (technical, material, and phenomenological aspects with expansion of concept) and (ii) progress in applications (physical, chemical/biochemical, and biomedical applications).

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Section: History Of Layer-by-layermentioning

confidence: 99%

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

et al. 2013

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“…An aminosilane in a vapor state was applied in order to obtain homogeneous and flat monolayer. 16 The aminosilanized Si-wafer was used to enhance the interaction between carboxyl-end group and substrate. Aminosilanization was carried out by chemisorption of 4-aminobutyl-mono-methoxy-dimethylsilane (ABDMS) on clean and dried Si-wafer by following procedure.…”

Section: Film Preparationmentioning

confidence: 99%

Effect of End Group–Substrate Interaction on Aggregation Structure of Polystyrene Ultrathin Films

Mounir

Takahara

Kajiyama

1999

Polym J

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ABSTRACT:The aggregation structure of proton-, monocarboxyl-, and dicarboxyl terminated polystyrene (PS) ultrathin films spin-coated onto different substrate surfaces was investigated on the basis of atomic force microscopy (AFM). In the case of the monocarboxyl-and dicarboxyl-terminated PS ultrathin films spin-coated onto Si-wafer, the dewetting occurred after annealing above their bulk glass transition temperatures. In contrast, those (monocarboxyl and dicarboxyl-terminated PS ultrathin films spin-coated) onto aminosilane-treatcd Si-wafer did not dewet even after annealing above the bulk T., owing to the specific interaction between -COOH and -NH 2 groups of aminosilane onto the Si-wafer.KEY Ultrathin polymer films are becoming more interesting from technological application and scientific standpoints. Also, polymeric surface functions as biomaterials, adhesives, lubricants, and others, are closely related to the surface aggregation structure of polymeric solids. 1 • 2 Therefore, studies on surface aggregation structure for polymeric thin films are important for practical applications as well as their scientific interest. Surface aggregation structure of polymer thin films has been investigated, both experimentally and theoretically. 3 -6 The stability of aggregation structure for the ultrathin films on solid substrate is of great importance in many industrial applications, and its controlling parameter might be wettability against substrate.7.8 However, it is often experienced that the polymer ultrathin films dewet the substrate upon heating above its glass transition temperature, Tg. 9 • 10 The dewetting of aggregation structure of end-functionalized polymer ultrathin film has been reported.U -13 To achieve long-term stabilization of surface aggregation structure for the ultrathin films, one may use polymers which can be anchored by one end group or two end groups to the substrate via strong chemical interaction. Klein et al. 14 · 15 have showed that the thin films of an oligostyrene liquid, which are forced on a nonwetted Si-wafer surface, rupture within a few minutes. These films may be stabilized and rupture-inhibited for many months by the presence of a polymer brush on the Si-wafer surface, together with some free polymer. The presence of both the brush and a sufficient amount of the free long-chain polymer are necessary for the prevention of rupture. Then the stability of aggregation structure of the end-functionalized polymer ultrathin film must be studied from the viewpoint of the film thickness and the degree of interaction between end group and substrate.In this study, a promising technical approach to avoid the dewetting of aggregation structure for polymer ultrathin films have been proposed via specific interaction between carboxylated polystyrene and aminosilanet To whom correspondence should be addressed.treated Si-wafer. Also, the effects of polymer film thickness on the stability of aggregation structure of the ultrathin polymer films have been studied by using the monocarboxyl-and dicarbo...

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“…Infrared spectroscopic methods have been used to investigate the variation at the interface between functionalized silica or glass fiber surfaces and reactive compounds. Different techniques were applied: transmission on thin films or pellets [5][6][7] (KBr, NaCl), diffuse reflectance infrared spectroscopy 6,7) (DRIFT), reflection-absorption infrared spectroscopy 8,9) (RAIR) or the attenuated total reflection (ATR) spectroscopy [10][11][12][13] . Different methods for modifying silicon substrates and glass fibers to get amino-functionalized surfaces are described as well 1,2,5,6,8,14,15) .…”

Section: Introductionmentioning

confidence: 99%

“…However, it was concluded that this procedure is not feasible in industrial practice. Beyer et al 9) studied the amino silanization of glass and silicon wafer surfaces from the gas phase. The second step was the chemisorption of an isocyanate/maleic anhydride copolymer from organic solution (N,N-dimethylformamide/CH 2 Cl 2 ).…”

Section: Introductionmentioning

confidence: 99%

FTIR spectroscopic studies of interfacial reactions between amino functionalized silicon surfaces and molten maleic anhydride copolymers

Bayer

Eichhorn²,

Grundke

et al. 1999

Macromol. Chem. Phys.

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SUMMARY: The interactions of two reactive maleic anhydride copolymers, a styrene maleic anhydride copolymer and an alternating copolymer of malic anhydride and a-olefin side chains, with amino-functionalized surfaces were studied by means of FTIR-ATR spectroscopy. The interfacial processes were detected at a planar surface of a thermally oxidized silicon as internal reflecting element. This ATR element can be understood as a model for a glass fiber which is used as reinforcing material in polymer matrices. A typical glass fiber coupling agent, c-aminopropyltriethoxysilane (c-APS), was used to functionalize the silicon dioxide layer. It was found that the amino groups of the amino siloxane network layer, which were obtained by a coating procedure with c-APS, react with the anhydride groups of the copolymer melt to form amic acid structures and imide structures depending on the chemical composition of the copolymers and the temperature.

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Surface Modification via Reactive Polymer Interlayers

Cited by 59 publications

References 21 publications

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

Effect of End Group–Substrate Interaction on Aggregation Structure of Polystyrene Ultrathin Films

FTIR spectroscopic studies of interfacial reactions between amino functionalized silicon surfaces and molten maleic anhydride copolymers

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