United States of America As Represented by the Secretary of the Air Force

Washington University

National Institutes of Health, a Component of the US Dept. of Health & Human Services

University of Dayton

Beth Israel Deaconess

Queensland Health

David Huabin Wang

Loon-Seng Tan

Timothy J White

Zhenning Yu

Hilmar Koerner

Richard A Vaia

Jeong Jae Wie

Kyung Min Lee

Guoyan Zhao

Herbert W Virgin

Larissa Thackray

Lei Zhu

Fred E Arnold, Jr

Dan H Barouch

Jong-Beom Baek

Herbert Virgin, Iv

Yan Li

Suxiang Tong

Philip R Buskohl

Rachel Presti

Joy Loh

Thad Stappenbeck

Ruel McKenzie

Christine Yokoyama

Stacy Finkbeiner

Jan Vinje

Guang Wu

Anne Gaynor

Michael Nissen

Theo Sloots

Scott Handley

Tara M Storage

The invention relates to cross-linkable thermoplastics, processes of making such cross-linkable thermoplastics and products comprising such cross-linkable thermoplastics. Such cross-linkable thermoplastics provide articles made by the additive manufacturing (AM) process with increased strength, the desired in use temperature stability and the desired thermo-oxidative stability.

Cross-linkable thermoplastics, and processes of making and using same

The invention relates to cross-linkable oligoimides, processes of making such cross-linkable oligoimides and products comprising such cross-linkable oligoimides. Such cross-linkable oligoimides provide articles made by an AM process with the desired process ability that permits filament formation, post cure increased strength, the desired in use temperature stability and the desired thermo-oxidative stability.

Cross-linkable oligoimides, and processes of making and using same

The invention generally relates to polymer nanocomposite films that possess shape memory properties at elevated temperatures. Such films can absorb microwaves, are thermally conductive, are electrically conductive and have increased mechanical strength. In addition, the present invention relates to methods of fabricating such films into 3D objects. Due to the improved properties of such films more advanced sensors and microwave shields can be constructed.

Shape-memory polyimide nanocomposites and fabrication of same

The invention generally relates to shape memory films that are tri-functionally crosslinked and that comprise multiple, non-terminal, phenylethynyl moieties. In addition, the present invention relates methods of fabricating such films. Due to the improved properties of such SMPS, the SMP designer can program in to the SMP mechanical property enhancements that make the SMP suitable, among other things, for advanced sensors, high temperature actuators, responder matrix materials and heat responsive packaging.

Lightly crosslinked polyimides with phenylethynyl pendants for shape-memory effect and programmed enhancement in Tg and modulus

The invention generally relates to shape memory films that are tri-functionally crosslinked and that comprise multiple, non-terminal, phenylethynyl moieties. In addition, the present invention relates methods of fabricating such films. Due to the improved properties of such SMPs, the SMP designer can program in to the SMP thermomechanical property enhancements that make the SMP suitable, among other things, for advanced sensors, high temperature actuators, responder matrix materials and heat responsive packaging.

Multiphenylethynyl-containing and lightly crosslinked polyimides capable of memorizing shapes and augmenting thermomechanical stability

Method for fabricating multiphenylethynyl-containing and lightly crosslinked polyimides capable of memorizing shapes and augmenting thermomechanical stability

Method for fabricating lightly crosslinked polyimides with phenylethynyl pendants for shape-memory effect and programmed enhancement in Tg and modulus

A method for fabricating a shape memory polymer into a three-dimensional object is provided. The method includes forming a film of crosslinked poly(amic acid) on a substrate to provide a laminated substrate; forming the laminated substrate into a first configuration that is in a three-dimensional form; curing the cross-linked poly(amic acid) to provide the shape memory polymer having a permanent shape corresponding to the first configuration; and removing the substrate from the laminated substrate to provide the three-dimensional object comprising the shape memory polymer. The formation of the laminated substrate into the three-dimensional object may be based on origami techniques.

Method of fabricating shape memory films

A sulfonyl-substituted polyphenylene-ether polymer having improved dielectric properties and methods for making the same. The sulfonyl-substituted PPE include sulfone-containing polyphenylene oxides ('PPO') polymers having repeating units of the formulas: wherein each of Rand Ris H or an alkyl group containing from 1 to 4 carbon atoms, Ris an alkylene group containing from 1 or 2 carbon atoms, Ris selected from a group consisting of an alkyl group containing from 1 to 4 carbon atoms, an aryl group, and CF, and X is a halogen atom. The subscript n is 0 or 1; the subscript m is 1 or 2, provided that when m is 2, Ris H. A degree of polymerization ranges from about 5 to about 1,000, and a ratio of units having formula (1) to units having formula (2) of the sulfone-containing PPO polymer ranges from about 10:90 to about 90:10.

Poly(2,6-dimethyl-1,4-phenylene-oxide) derivatives with sulfonyl pendant groups and methods therefor

New diamine monomers bearing sulfone terminated pendant groups, as well as methods for making the same, are provided. The diamine monomers are useful toward making polyamide, polyimide, and poly(amide-imide) polymers and copolymers, which possess hygromorphic properties and demonstrate humidity driven motility.

Hygromorphic polymers and copolymers having humidity-driven motility

Bis(azo-benzene) diamine monomers and a method of synthesizing the monomers are provided. The bis(azo-benzene) diamine monomers, in combination with amine reactive monomers, form polymers, such as polyimides and copolyimides, having photomechanical and thermomechanical properties.

Bis(azobenzene) diamines and photomechanical polymers made therefrom

A multifunctional crosslinking agent, a crosslinked polymer, and a method of making the same are disclosed. The multifunctional crosslinking agent, which may be used to crosslink amine-terminated polyamides, polyimides, or poly(amide-imide)s, includes three or four anhydride functional groups. The multifunctional crosslinking agent may be defined by a general chemical formula (I): (Z&#x2014;Ar&#x2014;)&#x2014;W, wherein W represents an anhydride functional group that is directly or indirectly bonded to Ar; Ar represents an aryl group that is directly bonded to W; and n is equal to 3 when W is P&#x2550;O or N, or n is equal to 4 when W is Si or a carbon moiety.

Multifunctional crosslinking agent, crosslinked polymer, and method of making same

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Beavercreek, OH, United States of America

David Huabin Wang