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Silane-modified polyester blends and methods of preparation

Patent ·
OSTI ID:1771760

A silane-modified polyester blend comprising a polyester polymer homogeneously blended with silane molecules containing two or three alkoxy groups bound to the silicon atom, wherein said silane molecules are present in said polyester blend in an amount of 0.05-20 wt % (or, e.g., 0.05-10 wt %, 0.05-5 wt %, or 0.05-2 wt %). The polyester polymer may, in particular embodiments, be a polyhydroxyalkanoate, terephthalate-based polyester, adipate-based, or succinate-based polyester. The silane molecule may be according to the formula (R2O)2SiR3R4, wherein R2 groups are independently selected from alkyl groups containing 1-4 carbon atoms; and R3 and R4 are independently selected from OR2 groups and alkyl groups containing 1-12 carbon atoms, provided that at least one of R3 and R4 is an alkyl group, wherein the alkyl group optionally includes one or more heteroatoms selected from oxygen, nitrogen, halogen, sulfur, phosphorus, and silicon. Methods for producing the silane-modified polyester blend are also described.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN); Iowa State University Research Foundation, Inc. (Knoxville, TN)
Patent Number(s):
10,875,960
Application Number:
16/110,138
OSTI ID:
1771760
Country of Publication:
United States
Language:
English

References (9)

Inhibited transesterification of PET/PBT blends filled with silica nanoparticles during melt processing journal August 2008
Biodegradable polymers and their layered silicate nanocomposites: In greening the 21st century materials world journal November 2005
Synthesis and characterization of PLA nanocomposites containing nanosilica modified with different organosilanes II: Effect of the organosilanes on the properties of nanocomposites: Thermal characterization journal September 2012
Increased impact strength of biodegradable poly(lactic acid)/poly(butylene succinate) blend composites by using isocyanate as a reactive processing agent journal January 2007
Mechanical and rheological properties of epoxidized soybean oil plasticized poly(lactic acid) journal June 2009
Synthesis and characterization of PLA nanocomposites containing nanosilica modified with different organosilanes I. Effect of the organosilanes on the properties of nanocomposites: Macromolecular, morphological, and rheologic characterization journal January 2012
Shape Memory Properties of PBS-Silica Hybrids journal January 2014
New trends in vinyl ester resins journal January 2014
Biodegradable Poly(butylene succinate) Composites Reinforced by Cotton Fiber with Silane Coupling Agent journal January 2013