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Synthesis and characterization of polysaccharide hydrogel based on hydrophobic interactions

机译：基于疏水相互作用的多糖水凝胶的合成与表征

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摘要

Hydrogels based on hydrophobic, or micellar interactions, are physically crosslinked hydrogels which are an attempt to overcome the poor mechanical properties of traditional, chemically crosslinked gels, such as low shear strength. We have prepared a polysaccharide-based hydrogel with physical crosslinks via hydrophobic interactions. In this work, we have synthesized hydrogel by grafting a hydrophobic moiety dioctylamine onto hydrophilic precursor carboxymethyl cellulose (CMC) through an amide bond formation, where similar to 33% of the carboxyl group in CMC was reacted with dioctylamine. The thermosensitive hydrogel can arrest 100 mL of deionized water per gram of gelator within few seconds. It showed the moderate rheological property. The hydrogel is nontoxic and does not show any adverse to human hemoglobin. It is a CMC based a unique gelator with high biocompatibility represent to be useful materials for biomedical application. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47665.
机译：基于疏水性或胶束相互作用的水凝胶是物理交联的水凝胶，其试图克服传统化学交联凝胶的差的机械性能，例如低剪切强度。我们制备了通过疏水相互作用的具有物理交联的基于多糖的水凝胶。在这项工作中，我们通过酰胺键形成将疏水部分二羟胺（CMC）移植到亲水性前体羧甲基纤维素（CMC）上合成水凝胶，其中CMC中的33％的羧基与二辛酰胺反应。热敏水凝胶在几秒钟内每克凝胶胶剂可以在100ml去离子水中。它显示了中度流变性质。水凝胶是无毒的，没有向人血红蛋白显示任何不利。它是一种基于CMC的独特凝胶，具有高生物相容性，代表是生物医学应用的有用材料。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47665。

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