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  • 1
    Electronic Resource
    Electronic Resource
    Dα3, a New Functional α Subunit of Nicotinic Acetylcholine Receptors from Drosophila (1998)
    Oxford, UK : Blackwell Science Ltd
    Journal of neurochemistry 71 (1998), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Nicotinic acetylcholine (ACh) receptors (nAChRs) are important excitatory neurotransmitter receptors in the insect CNS. We have isolated and characterized the gene and the cDNA of a new nAChR subunit from Drosophila. The predicted mature nAChR protein consists of 773 amino acid residues and has the structural features of an ACh-binding α subunit. It was therefore named Dα3, for Drosophilaα-subunit 3. The dα3 gene maps to the X chromosome at position 7E. The properties of the Dα3 protein were assessed by expression in Xenopus oocytes. Dα3 did not form functional receptors on its own or in combination with any Drosophilaβ-type nAChR subunit. Nondesensitizing ACh-evoked inward currents were observed when Dα3 was coexpressed with the chick β2 subunit. Half-maximal responses were at ∼0.15 µM ACh with a Hill coefficient of ∼1.5. The snake venom component α-bungarotoxin (100 nM) efficiently but reversibly blocked Dα3/β2 receptors, suggesting that Dα3 may be a component of one of the previously described two classes of toxin binding sites in the Drosophila CNS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1471-4159.1998.71020853.x
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  • 2
    Electronic Resource
    Electronic Resource
    Synthese und eigenschaften einiger höhergliedriger cyclischer ätheracetale (1977)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 178 (1977), S. 3191-3195 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Optimized syntheses of 1,3,6,9-tetraoxacycloundecane (2), 1,3,6,9,12-pentaoxacylotetradecane (3), and 1,3,6,9,12,14,17,20-octaoxacyclodocosane (4) as well as some physical and chemical properties and the proof of structure are reported.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1977.021781202
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  • 3
    Electronic Resource
    Electronic Resource
    Werner Kern zu seinem 70. Geburtstag (1976)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 177 (1976), S. 1639-1641 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: No. Abstract.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1976.021770601
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  • 4
    Electronic Resource
    Electronic Resource
    Über den mit Säuren katalysierten Abbau von Poly-3,4-acrolein (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 78 (1966), S. 613-613 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19660781156
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  • 5
    Electronic Resource
    Electronic Resource
    Polymere mit atropisomeren Biphenyl-Grundbausteinen (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 79 (1967), S. 422-422 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19670790936
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  • 6
    Electronic Resource
    Electronic Resource
    Synthetische makromolekulare Stoffe mit reaktiven Gruppen (1957)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 69 (1957), S. 153-171 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird über Synthese, Eigenschaften und Reaktionen einiger makromolekularer Stoffe mit reaktiven Gruppen berichtet, und zwar über Derivate der Polyacrylsäure (Polyacrylsäure-hydrazid, Polyacrylhydroxamsäure, Polyacrylsäureamid), des Polyvinylalkohols, über Polyacrolein und Polymethacrolein, Polyvinylsulfonsäure und ihre Derivate sowie über Copolymere aus Styrol und Maleinsäureanhydrid. An den reaktiven Gruppen dieser polymeren Stoffe werden chemische Reaktionen ausgeführt. Dabei zeigt sich, daß unter Bedingungen, die dem makromolekularen Bau des Reaktionspartners angepaßt sind, eine Reihe von Reaktionen, die aus der niedermolekularen Chemie gut bekannt sind, auf solche Polymere übertragen werden können. Dadurch werden neue makromolekulare Stoffe zugänglich, die durch Polymerisation oder Polykondensation nicht zu erhalten sind.
    Additional Material: 10 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19570690502
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  • 7
    Electronic Resource
    Electronic Resource
    Methoden und Probleme beim Studium optisch aktiver Polymerer (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 78 (1966), S. 909-909 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19660781821
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  • 8
    Electronic Resource
    Electronic Resource
    Aqueous base developable deep-UV resist based on chemically amplified crosslinking of phenolic resin (1992)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 32 (1992), S. 1523-1529 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The principle of chemical amplification has proven to be successful for the design of highly sensitive, high resolution resist material. In many cases a strong Broensted acid, generated by photolysis of onium salt precursors, has been used to catalytically cleave an acid labile blocking moiety. A new approach to negative tone resist is based on acid catalyzed cleavage of acetal blocked aromatic aldehydes, which act as “latent electrophiles” and, under the influence of strong acid, react with the surrounding phenolic resin. If the acetal is polyfunctional or incorporated in a phenolic polymer chain, an increase in molecular weight, due to crosslinking, is observed. The resist is highly sensitive and allows the resolution of 0.5 μm features without swelling.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760322014
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  • 9
    Electronic Resource
    Electronic Resource
    Macromolecules with groups of high reactivity (1960)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 48 (1960), S. 91-99 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Reactions on the reactive groups of macromolecular substances (e.g., cellulose) have long been known, even since before the structures of macromolecules were understood. H. Staudinger carried out numerous reactions with macromolecules, maintaining the degree of polymerization constant, in order to substantiate the macromolecular structure of the substances investigated (polymeric-analogous reactions). During the last fifteen years reactions with macromolecules have been investigated because it was desirable to compare the chemical diversity of low molecular weight compounds with the corresponding chemical diversity of macromolecular compounds. These endeavors bring forth materials which supplement the numerous macromolecular substances which are produced and used as materials for plastics, and therefore these materials should have as low reactivity and high stability as possible. Objectives are given for the preparation of macromolecules with a large variety of groups. From these objectives it is evident that, as in low molecular weight chemistry, macromolecular substances which possess functional groups of high reactivity are suitable as starting materials. Some of these which have been known for a long time but have been investigated only in recent years are polyaldehydes (polyacroleins and polymethylacroleins), polyacyl halides such as polyacryl chlorides and polyvinylsulfonyl chlorides and fluorides, and, most recently, polymeric organometallic compounds such as poly-p-lithiumstyrene. The reactions with these macromolecules are described and the properties of the resulting new polymeric substances are given.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1960.1204815010
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  • 10
    Electronic Resource
    Electronic Resource
    Die Wirksamkeit verschiedener peroxyde auf die mit Hilfe von Redox-Systemen beschleunigte Lösungspolymerisation von Styrol (1954)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 13 (1954), S. 210-222 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Different diacyl peroxides, hydroperoxides, dialkylperoxides and peracids are used as components of Fe··-redox-systems to polymerize styrene in benzene at 50° C. The conversions so obtained are compared with those of peroxide-induced polymerization. In cases of brominated peroxides one can calculate from the bromine-content of the polymers the incorporated catalyzer-fragments. No bromine can be found in the polymer if one uses brombenzoperacid; therefore if must be assumed, that the chain-initiation ensues through OH-radicals.
    Notes: Verschiedene Diacylperoxyde, Hydroperoxyde, Dialkylperoxyde und Persären werden als Komponenten von Eisen-Redox-Systemen zur Polymerisation von Styrol in Benzol bei 50° C benutzt. Die erzielten Umsätze werden mit denen bei peroxydischer Polymerisation verglichen. Bei bromhaltigen Peroxyden kann aus dem Bromgehalt der Polymeren auf die Zahl der eingebauten peroxydischen Bruchstücke geschlossen werden. Dabei Anwendung von Brombenzopersäre kein Brom in den Polymeren nachzuweiseu ist, muß angenommen werden, daß der Kettenstart durch OH-Radikale erfolgt.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1954.020130121
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