Synthesis, swelling and responsive properties of a new composite hydrogel based on hydroxyethyl cellulose and medicinal stone

Wang, Wenbo; Wang, Jiang; Kang, Yuru; Wang, Aiqin

doi:10.1016/j.compositesb.2011.01.018

Cited by 83 publications

(52 citation statements)

References 41 publications

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“…CMC is an anionic, water‐soluble cellulose derivative obtained by introducing CH 2 COOH groups into cellulose molecular chains. HEC also has excellent water solubility and biocompatibility . Based on these advantages, these two cellulose derivatives are suited for preparing transparent and homogeneous double‐network hydrogels for drug delivery and tissue engineering materials …”

Section: Introductionmentioning

confidence: 99%

Preparation of cellulosic drug‐loaded hydrogel beads through electrostatic and host–guest interactions

Wang

2018

J of Applied Polymer Sci

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Cyclodextrin‐grafted cellulosic hydrogel beads (CD+@HEC‐CMC‐gel) were prepared through electrostatic and host–guest interactions. β‐Cyclodextrin (CD+) modified with quaternary ammonium groups was used as the electropositive binding site, and carboxymethyl cellulose (CMC) in a double‐network hydrogel structure was used as the electronegative binding site. The double‐network structure was obtained by controlling the crosslinking of CMC and hydroxyethyl cellulose (HEC) in the presence of epichlorohydrin. The electrostatic interaction was used to graft CD+ onto the electronegative double‐network structure. Scanning electron microscopy indicated an obvious change in the cellulosic double network after grafting of CD+. The grafting content of CD+ in CD@HEC‐CMC‐gel is determined as 93.10 ± 0.74% by the photometric titration method. In order to evaluate the assembling and releasing ability, ibuprofen (IBU) was selected to be encapsulated in CD+@HEC‐CMC‐gel by host–guest interaction. In addition, the release of IBU by the hydrogel beads was explained by several kinetic models. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46593.

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Section: Introductionmentioning

confidence: 99%

Preparation of cellulosic drug‐loaded hydrogel beads through electrostatic and host–guest interactions

Wang

2018

J of Applied Polymer Sci

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“…In this context, cellulose, starch, or chitosan are widely used to prepare adsorbents (Chen et al 2008;Li et al 2009;Tripathy et al 2009;Liu et al 2010;Zheng et al 2010;Wang et al 2011;Xu et al 2011). These naturally occurring biomacromolecules are abundantly available, biodegradable, and environmentally friendly (Irani et al 2011;Miretzky and Muñoz 2011).…”

Section: Introductionmentioning

confidence: 99%

Poly(amidoxime) from Polymer-Grafted Khaya Cellulose: An Excellent Medium for the Removal of Transition Metal Cations from Aqueous Solution

Rahman¹,

Sarkar²,

Yusoff³

et al. 2016

BioResources

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A free radical chain initiation reaction was exploited to prepare poly(acrylonitrile)-grafted Khaya cellulose. The synthesis of the poly(amidoxime) ligand was also performed using oximation reactions. Transition metal cations formed some complexes with the polymeric ligand. The pH of the solution played an important role in the optical detection of Cu 2+ ions. The highest absorbance (approximately 94%) of the [Cu-ligand] n+ complex was at pH 6. The sorption quantity increased with increasing Cu 2+ ion concentration, which was reflected by a broad peak at 600 nm that was attributed to the charge transfer (- transition) process. The equilibrium sorption capacity of 282 mg/g, with faster adsorption rates (t1/2 = 8 min), suggested that copper possessed excellent adsorption capacity compared with the other cations (Fe 3+ , Co 3+ , Cr 3+ , Ni 2+ , and Zn 2+ ). The sorption data for all of the cations followed the Freundlich isotherm model, with a high coefficient of determination, reflecting a heterogeneous sorption process by the cellulose-based, poly(amidoxime) adsorbent. The feasibility for recycling of adsorbent was evaluated by the sorption/ desorption study, and the results suggest that a new type adsorbent can be reused in seven cycles without any significant loss in its original sensing and removal performances.

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“…As one might expect based on environmental concerns, many researchers have investigated the preparation of "all-natural-based" hydrogels incorporating cellulose or its derivatives (Harsh and Gehrke 1991;Barbucci et al 2000;Bin et al 2000;Fei et al 2000;Wach et al 2001Wach et al , 2002Hirsh and Spontak 2002;Liu et al 2002Liu et al , 2005aRodriguez et al 2003;Sannino et al 2003Sannino et al , 2004aSannino and Nicolais 2005;Yoshimura et al 2006;Demitri et al 2008;Faroongwang and Sukonrat 2008;Pourjavadi et al 2008Pourjavadi et al , 2010Chang et al 2009Chang et al , 2010Dai and Kadla 2009;El Salmawi and Ibrahim 2011;Salam et al 2011a,b;Wang et al 2011b;Kono and Fujita 2012;Pan and Ragauskas 2012;. For instance, a hydrogel based on a combination of cellulose and CMC can be prepared from a solution of the ingredients in a NaOH/urea solvent system .…”

Section: Hydrogels Based On Cellulose With Other Natural-based Polymersmentioning

confidence: 99%

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

Hubbe¹,

Ayoub²,

Daystar³

et al. 2013

BioResources

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Cellulose and some cellulose derivatives can play vital roles in the enhancement of the performance of absorbent products. Cellulose itself, in the form of cellulosic fibers or nano-fibers, can provide structure, bulk, water-holding capacity, and channeling of fluids over a wide dimensional range. Likewise, cellulose derivatives such as carboxymethylcellulose (CMC) have been widely studied as components in superabsorbent polymer (SAP) formulations. The present review focuses on strategies and mechanisms in which inclusion of cellulose -in its various formscan enhance either the capacity or the rate of aqueous fluid absorption in various potential applications.

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Synthesis, swelling and responsive properties of a new composite hydrogel based on hydroxyethyl cellulose and medicinal stone

Cited by 83 publications

References 41 publications

Preparation of cellulosic drug‐loaded hydrogel beads through electrostatic and host–guest interactions

Preparation of cellulosic drug‐loaded hydrogel beads through electrostatic and host–guest interactions

Poly(amidoxime) from Polymer-Grafted Khaya Cellulose: An Excellent Medium for the Removal of Transition Metal Cations from Aqueous Solution

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

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