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  • 1
    Electronic Resource
    Electronic Resource
    Copolymer synthesis of poly(L-lactide-b-DMS-L-lactide) via the ring opening polymerization of L-lactide in the presence of α,ω-hydroxylpropyl-terminated PDMS macroinitiator (1996)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 34 (1996), S. 2737-2742 
    Details
    ISSN: 0887-624X
    Keywords: lactide ; copolymer ; dimethylsiloxane ; macroinitiator ; organic-inorganic ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Various amounts of hydroxy terminated PDMS were linked into PLLA chains via in-situ ring opening polymerization at a very low content of SnOt2. The 1H and FTIR spectra provided evidence for the incorporation of the PDMS in the PLLA chains. The molecular weights, Tg, Tm, crystallinity and the heats of fusion decreased as the feed mole ratio of PDMS/LLA in the block copolymer increased. The molecular weight distribution broadened as the content of the PDMS increased, due the occurrence of two initiation and propagation mechanisms. Linking PDMS into the PLLA chains improved its thermal stability. © 1996 John Wiley & Sons, Inc.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Interfacial polycondensation reactions of the new monomer 1,1′-bis(β -aminoethyl)ferrocene (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 1 (1987), S. 81-93 
    Details
    ISSN: 0268-2605
    Keywords: Interfacial polymerization ; organometallic ; liquid crystal 1,1′-bis(β-aminoethyl)-ferrocene ; film formation ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Condensation polymerizations of several ferrocenecontaining monomers have been investigated, using low temperature interfacial and solution techniques. 1, 1′-bis(β-aminoethyl)ferrocene was synthesized via a 6-step process starting with ferrocene. This monomer was then copolymerized with various aromatic and aliphatic diacid chlorides as well as with diisocyanates, leading to ferrocene-containing polyamides and polyureas having moderately high to low viscosities. Using the interfacial method, film formation occurred for the polyamides. The related monomer 1,1′-bis(β-hydroxyethyl)ferrocene reacted with diacid chlorides and diisocyanates to form ferrocenecontaining polyesters and polyurethanes, respectively, using the solution method. The ferrocenecontaining condensation polymers were characterized by IR spectroscopy and examined for possible liquid crystalline behavior.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aoc.590010111
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    Paper (German National Licenses)
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