Cyclodextrin-linked PVP/PEG supramolecular hydrogels

被引：32

作者：

Cosgun, Seyma Nur Kirmic ^{[1
]}

Tuncaboylu, Deniz Ceylan ^{[1
]}

机构：

[1] Bezmialem Vakif Univ, Fac Pharm, TR-34093 Istanbul, Turkey

来源：

CARBOHYDRATE POLYMERS | 2021年 / 269卷

关键词：

Cyclodextrin; Poly(ethylene glycol); Poly(N-vinylpyrrolidone); Self-healing; Supramolecular;

D O I：

10.1016/j.carbpol.2021.118278

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Herein, we developed supramolecular hydrogels by using cyclodextrin (CD) molecules as crosslinking domains to hold poly(ethylene glycol) (PEG) and poly(N-vinylpyrrolidone) (PVP) chains in a network structure. The presence of PVP surrounding alpha-CD-PEG inclusion complexes through hydrogen bonds resulted in water-insoluble gels. Feed ratios of the reaction components and the molecular weight of the PEG chains were found considerably essential to adjust the properties of the final networks. With the increase of PEG concentration both the elastic and viscous modulus and the tensile capacity of the gels decreased. When the molecular weight of the PEG chains was used as >= 10 kDa, stable gels resistant to swelling forces were obtained. The synergistic effect of physical and chemical crosslinking by adding poly(ethylene glycol) dimethacrylate (PEGDMA) to the system was also investigated at varying concentrations resulted in stable networks with self-healing properties.

引用

页数：9

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