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  • Hexenyl silicones  (1)
  • Injection drug use  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Cross-linking of hexenyl silicone polymers via the olefin metathesis reaction (1994)
    Springer
    Journal of inorganic and organometallic polymers and materials 4 (1994), S. 367-376 
    Details
    ISSN: 1572-8870
    Keywords: Hexenyl silicones ; olefin metathesis ; silicone polymerization reactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The olefin metathesis reaction was explored as a novel method to produce cross-linked silicone polymers. Although this reaction is well-known for non-silicone-containing monomers, there are no examples of this reaction in the presence of siloxanes. We have discovered a catalyst system for the reaction of silicone substrates comprised of a 1:4 molar ratio of WCl6/Sn(CH3)4. No metathesis is seen with the traditional ratio of catalyst and cocatalyst. In a model system, 1-hexenylmethylbis(trimethylsiloxy)silane underwent self-metathesis in greater than 75% yield. The catalyst system also promoted metathesis of a hexenyl containing silicone polymer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00683701
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Psychosocial Antecedents of Unprotected Sex by Drug-Using Men and Women (1998)
    Springer
    Aids and behavior 2 (1998), S. 293-306 
    Details
    ISSN: 1573-3254
    Keywords: Injection drug use ; HIV risk ; gender
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Using the AIDS risk reduction model as a conceptual framework, we conducted a multivariate prospective test of psychosocial antecedents of unprotected sex by 155 female and 134 male heterosexual injection drug users. For both women and men, stronger intentions to use condoms predicted subsequent reductions in unprotected sex. For women, but not men, higher perceived self-efficacy also led to reductions in unprotected sex. These results suggest that explicit formation of risk-reduction intentions is an important antecedent to sexual behavior change by drug users of either gender and that change by drug-using women is also influenced by their perceived control over sexual risk-taking.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022618008009
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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