Accession Number : ADA502446


Title :   Effect of Polyhedral Oligomeric Silsesquioxane (POSS) Substituents on the Rheological Behavior in Butyl Methacrylate/POSS Copolymers


Descriptive Note : Conference paper


Corporate Author : AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE


Personal Author(s) : McGrath, Laura M ; Weber, Sarah A ; Yandek, Gregory R ; Mabry, Joseph M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a502446.pdf


Report Date : 27 Oct 2008


Pagination or Media Count : 4


Abstract : Polyhedral oligomeric silsesquioxane (POSS) has generated much interest in the development of novel nanomaterials. The organic groups attached to the silicon atoms in the POSS cage can serve many different functions. It has been shown that POSS copolymers exhibit different rheological properties when the organic group is changed in a copolymer. In this work, we examine the effects of varying the organic groups (R = c-C5H9: denoted as Cp, i-C4H9: i-Bu, C3H4F3: FPr) on propylmethacryl POSS molecule copolymerized with n-butyl methacrylate. i-Bu groups increase the free volume in the copolymer whereas the Cp and FPr groups appear to interact thereby reinforcing the soft polymer.


Descriptors :   *OLIGOMERS , *SILOXANES , *METHACRYLATES , *RHEOLOGY , BUTYL RADICALS , ORGANIC RADICALS , COPOLYMERS , POLYMERS , SYMPOSIA , REPRINTS , SILICON


Subject Categories : Organic Chemistry
      Polymer Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE