Photocuring 3D printable self-healing polymers

Zhu, Junjie; Chen, Jixun; An, Zihan; Kumar Kankala, Ranjith; Chen, Ai-Zheng; Wang, Shi-Bin; Li, Yuewei

doi:10.1016/j.eurpolymj.2023.112471

Cited by 4 publications

(1 citation statement)

References 157 publications

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“…It is used to produce strong coatings on various surfaces, even very sophisticated ones [26,27]. Also, it is widely employed in several techniques of 3D printing to fabricate objects according to computer-aided design based on digital model files [28][29][30]. Moreover, it is attracting growing interest in the development of in situ gelling hydrogels for drug delivery, biosensing, and tissue engineering [31,32].…”

Section: Introductionmentioning

confidence: 99%

Double Photocrosslinked Responsive Hydrogels Based on Hydroxypropyl Guar

Ospennikov,

Shibaev,

Philippova

2023

IJMS

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Double crosslinked hydrogels based on a biodegradable polymer were prepared by photocopolymerization of methacrylated hydroxypropyl guar (HPG-MA) and 3-acrylamidophenylboronic acid. Along with irreversible strong covalent crosslinks by methacrylic groups, these hydrogels contained labile boronate crosslinks formed as a result of the interaction of boronic acid with cis-diol moieties of HPG. These hydrogels demonstrated higher elasticity than HPG-MA hydrogels with only irreversible covalent crosslinks. Labile boronate crosslinks not only strengthened the hydrogels but also imparted to them pronounced responsive properties. It was demonstrated that the mechanical properties, the swelling behavior, as well as the uptake and release of some substances from the double crosslinked hydrogel were pH controlled. For instance, the hydrogels could release cationic disinfectant at a rate regulated by pH. Such photocrosslinkable in situ forming hydrogels are very promising for the production of smart coatings that release targeted substances at the desired rate.

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