Design and synthesis of novel crosslinked polydimethylsiloxanes for use in flame retardant applications

POLY 130

Vincent B Tucci1, Mukesh K. Pandey, mukesh_pandey@uml.edu2, Rahul Tyagi, Rahul_Tyagi@uml.edu2, Virinder S. Parmar3, Jayant Kumar, Jayant_Kumar@uml.edu2, and Arthur C. Watterson, Arthur_Watterson@uml.edu2. (1) Institute for NanoScience and Engineering Technology, University of Massachusetts Lowell, Department of Chemistry, 1 University Avenue, Lowell, MA 01854-5009, (2) Institute for Nanoscience and Engineering Technology and Center for Advanced Materials, University of Massachusetts-Lowell, Lowell, MA 01854, (3) Bioorganic Laboratory, Department of Chemistry, University of Delhi, India, Delhi, Delhi 110007, India
Polydimethylsiloxanes have been well known for their flame retardancy. Present work explores the use of these polymers for applications in the coating of materials. The creation of these novel polymer systems is done through the chemo-selective condensation polymerization of immobilized Candida antartica lipase B, commercially known as Novozyme 435. The chemoselectivity of Novozyme allows the creation of an amine functionalized polymer in one step. This allows the crosslinking of the polydimethylsiloxane, through the heat cure of Hexamethylenetetramine, into a compound with high degradation temperature and very low heat release capacity. It does this through limiting the pathways to degradation, as characterized by GC/Mass. This polymer system creates a coatable polymer with a rubber like appearance and high flame retardancy.
 

General Papers: Functional Materials
6:00 PM-8:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Polymer Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007