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Title: Surface functionalization of metal organic frameworks for mixed matrix membranes

Mixed Matrix Membrane (MMM) are composite membranes for gas separation and comprising a quantity of inorganic filler particles, in particular metal organic framework (MOF), dispersed throughout a polymer matrix comprising one or more polymers. This disclosure is directed to MOF functionalized through addition of a pendant functional group to the MOF, in order to improve interaction with a surrounding polymer matrix in a MMM. The improved interaction aids in avoiding defects in the MMM due to incompatible interfaces between the polymer matrix and the MOF particle, in turn increasing the mechanical and gas separation properties of the MMM. The disclosure is also directed to a MMM incorporating the surface functionalized MOF.
Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1347601
Assignee:
U.S. Department of Energy NETL
Patent Number(s):
9,597,643
Application Number:
14/519,743
Resource Relation:
Patent File Date: 2014 Oct 21
Research Org:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Works referenced in this record:

Tuning the Moisture and Thermal Stability of Metal–Organic Frameworks through Incorporation of Pendant Hydrophobic Groups
journal, September 2013
  • Makal, Trevor A.; Wang, Xuan; Zhou, Hong-Cai
  • Crystal Growth & Design, Vol. 13, Issue 11, p. 4760-4768
  • DOI: 10.1021/cg4009224