Metal‐containing poly (<i>p</i>‐xylylene) films by CVD: Poly (<i>p</i>‐xylylene) with germanium crystals

Hopf, Henning; Герасимов, Г. Н.; Chavalun, Sergei N.; Rozenberg, Valerial I.; Popova, Elena L.; Nikolaeva, Elena V.; Grogoriev, Evgenii I.; Zavjalov, S. A.; Трахтенберг, Л. И.

doi:10.1002/cvde.19970030407

Cited by 21 publications

(12 citation statements)

References 14 publications

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“…The use of PECVD polymer films to form composites has been extensively studied, especially with respect to polymer‐metal composites 26. Metal and semiconductor nanoparticles have also been incorporated into CVD poly( p ‐xylylene) 495–500. The CVD polymerization methods provide control over particle size and agglomeration, which are essential to the physical and chemical properties of the composite 497.…”

Section: Example Applicationsmentioning

confidence: 99%

“…Incorporating Mn and Mg into CVD poly( p ‐xylylene) formed optically adsorbing complexes, while incorporating Ag did not 495, 498. A similar method, using cyclophanes with an organogermanium bridge, was used to obtain poly( p ‐xylylene) films with incorporated Ge crystals after thermal treatment to break the organogermanium bond 496. Curing of VDP poly(imide) films embedded with copper phthalocyanine (CuPc) resulted in small crystals of CuPc 502.…”

Section: Example Applicationsmentioning

confidence: 99%

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Chemical Vapor Deposition of Conformal, Functional, and Responsive Polymer Films

et al. 2010

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Chemical vapor deposition (CVD) polymerization utilizes the delivery of vapor-phase monomers to form chemically well-defined polymeric films directly on the surface of a substrate. CVD polymers are desirable as conformal surface modification layers exhibiting strong retention of organic functional groups, and, in some cases, are responsive to external stimuli. Traditional wet-chemical chain- and step-growth mechanisms guide the development of new heterogeneous CVD polymerization techniques. Commonality with inorganic CVD methods facilitates the fabrication of hybrid devices. CVD polymers bridge microfabrication technology with chemical, biological, and nanoparticle systems and assembly. Robust interfaces can be achieved through covalent grafting enabling high-resolution (60 nm) patterning, even on flexible substrates. Utilizing only low-energy input to drive selective chemistry, modest vacuum, and room-temperature substrates, CVD polymerization is compatible with thermally sensitive substrates, such as paper, textiles, and plastics. CVD methods are particularly valuable for insoluble and infusible films, including fluoropolymers, electrically conductive polymers, and controllably crosslinked networks and for the potential to reduce environmental, health, and safety impacts associated with solvents. Quantitative models aid the development of large-area and roll-to-roll CVD polymer reactors. Relevant background, fundamental principles, and selected applications are reviewed.

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Section: Example Applicationsmentioning

confidence: 99%

Section: Example Applicationsmentioning

confidence: 99%

Chemical Vapor Deposition of Conformal, Functional, and Responsive Polymer Films

et al. 2010

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“…The technologically most promising method of obtaining such polymer composites is vapor deposition of metal-monomer systems followed by polymerization of the monomer and inclusion of the metal into the matrix. Dimethylgermanium-bridged bis-cyclo-phane 145 has been used to prepare a poly(p-xylylene) film that contains Ge crystals [94]. At 550°C the compound is converted into highly reactive p-xylylenes 146 and 147.…”

Section: Oligonuclear Metal Complexes With Cyclophane Ligandsmentioning

confidence: 99%

“…Scheme 47. Formation of a Ge-containing poly(p-xylylene) film by chemical vapor deposition [94] 145 146 147 148…”

Section: Oligonuclear Metal Complexes With Cyclophane Ligandsmentioning

confidence: 99%

Carbon Rich Cyclophanes with Unusual Properties — an Update

König

1998

Topics in Current Chemistry

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Cyclophane chemistry and the research targets in this area have changed over the past two decades. While the unique electronic and structural properties of cyclophanes are still fascinating, more and more attention is now being paid to the function of the molecules, e.g., to the formation of inclusion complexes of large cyclophanes or the use of chiral cyclophanes as auxiliars in asymmetric synthesis. The rigid structures of short bridge cyclophanes has stimulated the synthesis of compounds with extended p-systems. Both their interesting physical properties, e.g., in intramolecular electron transfer processes, and their often beautiful structures of high symmetry are alluring.While synthetic approaches to cyclophanes, their reactivity and inclusion ability have been reviewed extensively, applications of the cyclophane scaffold and its properties are scattered. Therefore the author will focus on the recent developments in the chemistry of cyclophanes that have been used as building blocks for functional devices, as ligands for metal coordination and chiral auxiliaries or chiral ligands in synthesis. It will show that a class of compounds considered esoteric 20 years ago is now even reaching industrial applications. A review with 60 schemes and 122 references.

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“…metal-containing polymer films are attractive for sensor, magnetic, nonlinear optical and catalytic applications [1]. As recently reviewed [2±4], molecular ferromagnets have great potential in areas of technology such as low-frequency magnetic shielding, magnetic imaging, magneto-optics and infor-mation storage, the ultimate goal being the synthesis of chemically stable molecular ferromagnets with a critical temperature (T c ) well above room temperature together with optimized magnetic characteristics [4].…”

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confidence: 99%

Bis(arene)chromium-containing polyacrylonitrile and its thermolysis products: synthesis, characterization and magnetic properties

Домрачев

Douglas

Henner

et al. 1999

Polym. Adv. Technol.

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Polyacrylonitrile bonded to bis(arene)chromium complexes was prepared by the polycyanoethylation reaction between acrylonitrile and various bis(arene)chromium complexes. The star‐shaped molecules consisted of a central bis(arene)chromium species with up to four polyacrylonitrile arms (each composed of up to 63 acrylonitrile units) covalently bonded to the arene ligands. The products of thermolysis of the polymers at 160°C and 350°C were characterized by elemental analysis as well as infrared nuclear magnetic resonance, electron paramagnetic resonance, Mössbauer and X‐ray photoelectron spectroscopies. Thermolysis at 160°C resulted in essentially complete decomposition of the bis(arene)chromium complexes, the polyacrylonitrile chains remaining unaffected. At thermolysis temperatures above 300°C, cyanogen and ammonia were evolved, spectroscopic studies of the resulting material indicating formation of conjugated polynaphthyridine‐type products containing ketoimine fragments. The product of thermolysis at 160°C showed room temperature ferromagnetism and that obtained at 350°C was an antiferromagnet with a Neel temperature of ca. 150 K. Copyright © 1999 John Wiley & Sons, Ltd.

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Metal‐containing poly (p‐xylylene) films by CVD: Poly (p‐xylylene) with germanium crystals

Cited by 21 publications

References 14 publications

Chemical Vapor Deposition of Conformal, Functional, and Responsive Polymer Films

Chemical Vapor Deposition of Conformal, Functional, and Responsive Polymer Films

Carbon Rich Cyclophanes with Unusual Properties — an Update

Bis(arene)chromium-containing polyacrylonitrile and its thermolysis products: synthesis, characterization and magnetic properties

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