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  • 1
    Electronic Resource
    Electronic Resource
    Preparation of photochromic polymers by stereospecific copolymerization of trans-4-(2-methacryloxyethyloxy)azobenzene and (-)-menthyl methacrylate (1991)
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 2 (1991), S. 3-14 
    Details
    ISSN: 1042-7147
    Keywords: Photochromic polymers ; Optically active polymers and copolymers ; Stereoregular polymers and copolymers ; 4-(2-Methacryloxyethyloxy)azobenzene ; (-)-Menthyl methacrylate ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The synthesis is reported of a new photochromic monomer, trans-4-(2-methacryloxyethyloxy) azobenzene (MEAB), where the azobenzene chromophore is separated from the ester group by an ethylenoxy spacer arm. Comparative experiments show that trans-4-methacryloxyazobenzene (MAB), having the azobenzene group directly attached to the ester functionality, does not homopolymerize or copolymerize with (-)-menthyl methacrylate (MnMA) in the presence of different anionic initiators, whereas isotactic homopolymers and copolymers of MEAB can be obtained: the microstructure is described with reference to analogous atactic macromolecules.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pat.1991.220020101
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    FT-IR microspectroscopy study of blends of ester functionalized ethylene-propylene copolymer with (vinylidene fluoride-hexafluoropropene) elastomer (1992)
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 3 (1992), S. 75-79 
    Details
    ISSN: 1042-7147
    Keywords: FT - IR microspectroscopy ; Polymer blends ; Phase separation ; Intermolecular interactions ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: An ethylene - propylene (EPR) copolymer functionalized with (1,2-dicarboethoxy)ethyl groups has been blended with a vinylidene fluoride - hexafluropropene elastomer (NML). The existence of intermolecular interactions involving mainly the carbonyl groups of the side chains of the functionalized copolymer and the methylene hydrogens of the fluoroelastomer through hydrogen bonding was shown by means of FT - IR spectroscopy. The structure and composition of some microdomains in the mixture was examined by means of FT - IR microspectroscopy.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pat.1992.220030205
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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