University of Tennessee Research Foundation

Ut-battelle, Inc.

Brian Keith Long

Tomonori Saito

Jimmy Wayne Mays

Shannon Mark Mahurin

Sabornie Chatterjee

De-en Jiang

Jordan Michael Kaiser

Tao Hong

Alexei P Sokolov

A method of preparing a polyolefin is disclosed. In some examples, the method comprises contacting an olefin monomer with an olefin polymerization precatalyst and a photoacid generator (PAG) to provide an olefin polymerization mixture; and irradiating the olefin polymerization matrix for a first period of time with ultraviolet or visible light, activating the precatalyst to catalyze polymerization of the olefin monomer, thereby preparing a polyolefin. Additive manufacturing approaches employing the methods are also disclosed, as are ink compositions comprising an olefin polymerization precatalyst and a PAG.

Olefin polymerizations and printing methods thereof

A membrane useful in gas separation, the membrane comprising a cross-linked polysiloxane structure having a cross-link density of about 0.1&#xd7;10mol/cmto about 6&#xd7;10mol/cm, where, in particular embodiments, the cross-linked polysiloxane structure has the following general structure: wherein R, R, R, R, R, and Rare independently selected from hydrocarbon groups having at least 1 and up to 6 carbon atoms; Aand Aare independently selected from cyclic hydrocarbon groups; Land Lare linking groups or covalent bonds; n is an integer of at least 1; r and s are independently selected from integers of at least 1; and p is an integer of at least 10. The invention also includes methods for making and using the above-described membranes for gas separation.

Cross-linked polymeric membranes for carbon dioxide separation

Growing community of inventors

Knoxville, TN, United States of America

Brian Keith Long