Efficient synthesis of telechelic hydroxyallyl polyisobutylenes, a precursor to thermoplastic polyurethanes

POLY 107

Ritimoni Rajkhowa, Ritimoni_Rajkhowa@student.uml.edu and Rudolf Faust, Rudolf_Faust@uml.edu. Department of Chemistry, University of Massachusetts Lowell, One University Ave, Lowell, MA 01854
The syntheses of mono and dihydroxyallyl end-functionalized polyisobutylenes (PIB) were accomplished from the chloroallyl and bromoallyl PIBs using a one step procedure. The haloallyl endcapped polymers were efficiently hydrolyzed under basic conditions to derive the hydroxy end functional products with complete functional conversion. The reaction rate and % conversion for different halo functionality was optimized with respect to temperature and time. The functional conversion was monitored and analyzed using NMR, GPC, FT-IR and MALDI-TOF mass spectroscopy. These hydroxy end terminated PIBs are promising candidates for the synthesis of thermoplastic polyurethanes.
 

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

Sci-Mix
8:00 PM-10:00 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Sci-Mix

Division of Polymer Chemistry

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