US 12,479,952 B2
High-energy density shape memory polymers using strain-induced supramolecular nanostructures
Zhenan Bao, Stanford, CA (US); Chris Cooper, Palo Alto, CA (US); and Shayla Nikzad, Stanford, CA (US)
Assigned to The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Filed by The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Filed on Aug. 3, 2022, as Appl. No. 17/880,559.
Claims priority of provisional application 63/229,299, filed on Aug. 4, 2021.
Prior Publication US 2023/0065894 A1, Mar. 2, 2023
Int. Cl. C08G 18/50 (2006.01); C08G 18/76 (2006.01)
CPC C08G 18/7671 (2013.01) [C08G 18/5039 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A polymer comprising:
a periodic placement of directional dynamic bonding units along a flexible polymer backbone, wherein the periodic placement of directional dynamic bonding units is configured to enable the formation of strain-induced supramolecular structures during strain, and
wherein the strain-induced supramolecular structures comprise uniform, periodic nanofibers oriented perpendicular to the strain.