Self-healing bottlebrush polymer networks enabledviaa side-chain interlocking design

Abstract

Exploring novel healing mechanisms is a constant impetus for the development of self-healing materials. Herein, we find that the side-chain interlocking of bottlebrush polymers can form a dynamic network and...

A strain-reinforcing elastomer adhesive with superior adhesive strength and toughness

“…36 The hanging adhesive moiety (DMPA-DA) is designed to offer the PUD x with better ability to associate with the target substrate through secondary relaxations because side-chain relaxation is proved more favorable than the counterpart in the macromolecular main chain. 37 Through the above molecular designs, we expect that during the debonding process, the PUD x adhesives can allow large deformations due to the sacrificial H-bonds and withstand high lap-shear forces because of the mechano-responsive merit and the effective interfacial interactions with the substrates. According to the lap-shear adhesive performance in Fig.…”

Remarkable sol–gel transition of PNIPAm-based nanogels via large steric hindrance of side-chains

“…contrast, the physically crosslinked hydrogel referring to networks held together by various physical interactions (e.g., hydrogen-bonding, electrostatic interaction, hydrophobic association) can not only overcome the limitation of the chemical crosslink, but also endow the material with reversibility, selfhealing properties and stimuli responsiveness. 16,17 A common strategy to develop a physically crosslinked in situ forming hydrogel is the usage of thermosensitive polymer systems. [18][19][20] In particular, poly (N-isopropylacrylamide) (PNI-PAm)-based thermosensitive polymers, which undergo coil/ globule transition near human physiological temperature, are most appealing.…”

“…, hydrogen-bonding, electrostatic interaction, hydrophobic association) can not only overcome the limitation of the chemical crosslink, but also endow the material with reversibility, self-healing properties and stimuli responsiveness. 16,17…”

All-Atom Molecular Dynamics Simulations of Uncharged Linear Polymer Bottlebrushes: Effect of the Brush Sizes and the Number of Side-Chain Monomers

“…Polymer chains of bottlebrush architecture or bottlebrush polymers (BBPs), also sometimes denoted as comb-type polymer chains, have been widely investigated over the last several decades and have found extensive applications in areas such as lithium-ion batteries, proton-conducting polymers, solar thermal systems, artificial muscles, vectors, drug carriers, , precision medicines, self-healing networks, − flexible sensors, and electronics. , Such BBPs are typically copolymer systems where one type of polymer forms the backbone, while another type forms the side chains that are grafted on the backbone polymer. A vast variety of BBP systems have been designed by varying (a) the nature of the backbone and side chain polymers; (b) the size or number of monomers of the backbone and side chains; (c) the grafting density of the side chains, etc.…”