Biodegradable poly(ester urethane)/soy protein isolate hybrids: Synthesis and characterization

PMSE 301

Wenshou Wang, and Joshua Otaigbe, Department of Polymer Science, The University of Southern Mississippi, 118 College Drive #10076, Hattiesburg, MS 39406
New biodegradable poly(ester urethane)/soy protein isolate (PU/SPI) hybrids were prepared by in situ polymerization. The chemical incorporation of the SPI into the backbone chain of the PU was facilitated by the reaction of the amine groups of SPI with MDI. X-ray diffraction results showed that the incorporation of SPI into polyurethane significantly changed the molecular structure of the PU. The PU/SPI hybrids exhibited higher thermal decomposition temperature and significant increase in the modulus compared with that of pure polyurethane. The hydrolytic degradation of the PU was accelerated by incorporation of SPI, as confirmed by scanning electron microscopy. This provides a facile and innovative method of controlling the biodegradation rate of pure PU with the additional advantage of environmentally-benign biodegradation of the polymer.

PMSE/POLY Poster Session
8:30 AM-10:30 AM, Tuesday, August 18, 2009 Grand Hyatt -- Independence A, Poster

8:00 PM-10:00 PM, Monday, August 17, 2009 Walter E. Washington Convention Center -- Hall D, Sci-Mix

Division of Polymeric Materials: Science & Engineering

The 238th ACS National Meeting, Washington, DC, August 16-20, 2009