公开(公告)号：US20240392097A1

公开(公告)日：2024-11-28

申请号：US18695210

申请日：2022-09-24

Applicant: Virginia Tech Intellectual Properties, Inc.

Inventor： Guoliang LIU ,  Zhen XU

IPC: C08J11/20 ,  C08J3/205

Abstract: A method of converting polystyrene to diphenylmethane using either UV light and or heat and a Lewis acid is disclosed.

公开(公告)号：US20240239977A1

公开(公告)日：2024-07-18

申请号：US18549998

申请日：2022-03-04

Applicant: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.

Inventor： Guoliang LIU ,  Zhen XU ,  Alan Roger ESKER ,  Gehui LIU

IPC: C08J5/18 ,  C08G73/10 ,  C08J3/24

CPC classification number: C08J5/18 ,  C08G73/1071 ,  C08J3/24 ,  C08J2379/08

Abstract: In one aspect, the disclosure relates to azide-containing poly(ether imide) polymers (PEIs; N3-PEI-N3) synthesized via a heterogenous diazotizationazidation reaction. In one aspect, the azide-containing PEIs can be solution-cast into films and then thermally crosslinked. In a further aspect, the crosslinked PEIs (X-PEIs) exhibit superior thermal and mechanical properties. In a still further aspect, X-PEIs display outstanding resistance to classical solvents for conventional PEI, including THF, DCM, chloroform, DMF, and NMP. In another aspect, with an initial number average molecular weight (Mn) of 8.9 kDa, the disclosed azide-containing PEIs have a high crosslinking density and thus possess desirable thermal, mechanical, and solvent resistance properties.

公开(公告)号：US20210351401A1

公开(公告)日：2021-11-11

申请号：US17273718

申请日：2019-09-06

Applicant: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.

Inventor： Guoliang LIU ,  Tianyu LIU

IPC: H01M4/36 ,  H01M4/86 ,  H01M4/88 ,  H01M4/96 ,  H01M4/04 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01G11/24 ,  H01G11/40 ,  H01G11/26 ,  H01G11/86

Abstract: Porous carbon fiber electrode materials are provided having fast electron and ion transport. The porous carbon fiber electrodes include uniform mesoscale pores that are partially filled with a metal oxide layer. With large mass loadings of metal oxide, porous carbon fiber electrodes described herein can outperform conventional metal oxide electrodes at similar loadings. In various aspects, electrode materials are provided having (i) a porous carbon fiber support with a plurality of mesoscale pores having an internal surface and an average pore width of about 2 mm to about 200 mm; and (ii) a metal oxide layer on at least the internal surface of the mesoscale pores. Methods of making the porous carbon fiber electrode materials are also provided. Using a microphase-separation of block copolymers, the methods can provide porous carbon fiber supports with interconnected and uniform mesoscale pores that can be deposited with a metal oxide layer.