Synthesis and characterization of chitosan-g-poly(2-(furan-2-carbonyl)-acrylonitrile): Grafting of chitosan using a novel monomer prepared by a Baylis–Hillman reaction

Al‐Sagheer, Fakhreia; Khalil, Khaled D.; Ibrahim, Enas I.

doi:10.1016/j.eurpolymj.2013.03.010

Cited by 15 publications

(6 citation statements)

References 25 publications

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“…From the spectrum of chitosan (Figure 3(a)), peaks at δ 23 and δ 174 were assigned to methyl and carbonyl groups of N-acetylglucosamine unit, respectively. The other peaks in the δ 56-105 region can be attributed to the distribution of anomeric carbons, carbons attached to amino group and other carbons of polysaccharide (Al Sagheer et al 2013;Heux et al 2000;Liu et al 2014). After the introduction of side chains, the spectrum (Figure 3(b)) shows additional signals at δ 16 and δ 45 which correspond to a-methyl and quaternary carbons of PMAM grafts, respectively (Don & Chen 2005;Konaganti et al 2010).…”

Section: Characterizationmentioning

confidence: 98%

“…Recently, studies on the graft copolymerization of chitosan with various vinyl monomers have been extensively conducted to explore fully their high potential. Chitosan grafted with styrene using APS as initiator was successfully prepared by our research group (Al Sagheer et al 2013). Similarly, chitosan-g-poly(2-hydroxyethyl acrylate) was carried out in aqueous solution using APS (Mun et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Ammonium Persulfate-initiated Graft Copolymerization of Methacrylamide onto Chitosan: Synthesis, Characterization and Optimization

Sutirman¹,

Sanagi²,

Naim³

et al. 2017

JSM

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Ammonium persulfate (APS)-initiated grafting of methacrylamide (MAM) onto chitosan was successfully prepared for the first time by free radical mechanism. Both chitosan and chitosan-graft-poly(methacrylamide) (chitosan-g-PMAM) were characterized using Fourier transform infrared spectroscopy (FTIR), solid state 13 C NMR, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). Important factors affecting graft copolymerization such as reaction time, temperature and concentrations of APS, MAM and chitosan were investigated and optimized to obtain maximum grafting parameters. The optimum values for grafting percentage and yield of graft copolymerization were achieved under the following conditions: chitosan (1 g), MAM (4 g), APS (0.6 g), time reaction (4 h) and temperature (70ºC).

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Section: Characterizationmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Ammonium Persulfate-initiated Graft Copolymerization of Methacrylamide onto Chitosan: Synthesis, Characterization and Optimization

Sutirman¹,

Sanagi²,

Naim³

et al. 2017

JSM

View full text Add to dashboard Cite

show abstract

“…The main applications of chitosan and its derivatives in cosmetics and in pharmaceutical and biomedical fields are summarized hereinafter in brief. N, N, N-trimethyl chitosan Antibacterial activity [116] Sulfonated chitosan Hemocompatibility [89] Chitosan-g-PVA Hemocompatibility [117] N-hexanoyl chitosan Hemocompatibility [118] N, O-/N-succinyl chitosan Hemocompatibility [119] Chitosan-g-PEG-folate Gene carrier [120] O-/N, O-carboxymethyl chitosan Antibacterial activity [121] Drug delivery / gene therapy [122] Nanocarriers with protein-repelling proteins [123] Phosphorylcholine-chitosan Substrate for endothelial progenitor cells culture [124] O-carboxymethyl chitosan Hemocompatibility [125] O-stearoyl chitosan Hemocompatibility [126] Chitosan-g-PEG Antibacterial activity [127] Chitosan-g-caffeic acid Antioxidant activity [128] Chitosan-g-lysozyme Antibacterial activity [61] 6-O-/3, 6-O-sulfated chitosan Hemocompatibility [129] N-octyl-O-sulfate chitosan Drug carrier [130] Chitosan-g-poly(glycidyl methacrylate) Drug delivery [131] Chitosan-g-poly(2-(furan-2carbonyl)-acrylonitrile) Antibacterial activity [132] Chitosan-g-imidazole Bone regeneration [133]…”

Section: Chitosan Applicationsmentioning

confidence: 99%

Antibacterial Coatings Based on Chitosan for Pharmaceutical and Biomedical Applications

Vaz

Pezzoli

Chevallier

et al. 2018

CPD

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The risk of bacterial colonization of abiotic surfaces of biomedical devices poses important challenges for the pharmaceutical and biomaterials science fields. In this scenario, antibacterial coatings have been developed, using a number of different molecules and materials. Among them, chitosan is a non-cytotoxic, biocompatible biopolymer with an inherent antimicrobial activity that has been already used in a wide variety of healthcare and industrial applications. Herein, chitosan-based antibacterial coatings are critically surveyed, with a special emphasis on their production methods, pharmaceutical and biomedical applications, along with their pros and cons, and finally highlighting the key challenges to be faced and future perspectives in this field.

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“…Furthermore, the carbon fixation rate in the early stage of plant growth and utilization efficiency of granular fertilizer ,, can also be improved. On the basis of the literature analysis, it is apparent that to improve SAP water capacity, more ionic functional groups (i.e., −OH, −NH 2 , −COOH, −SO 3 H) need to be included, , whereas to improve the salt resistance, zwitterionic groups are needed. , Along with total absorption capacity and salt resistance, other important factors for ideal SAP such as good absorption under load, higher mechanical properties, and absorption rate have been investigated, and synthetic factors affecting these have been correlated in Table .…”

Section: Superabsorbent Polymersmentioning

confidence: 99%

Recent Trends in Advanced Polymer Materials in Agriculture Related Applications

Sikder

Pearce

Parkinson

et al. 2021

ACS Appl. Polym. Mater.

151

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Over the past few decades, advanced polymeric materials have gained popularity in the development of sustainable agricultural applications. Smart polymeric systems have extensively contributed to the agricultural industry by increasing the efficiency of pesticides, herbicides, and fertilizers by facilitating controlled release systems and, therefore, enabling lower doses to be used. Superabsorbent polymeric materials have been used as soil conditioners to control the impact of drought, whereas polycationic polymers have been utilized for plant bioengineering. These functions in the environment are complemented by applications within plants as part of the developing range of tools for genetically transforming plants in order to increase productivity and disease resistance. This Review will summarize and discuss the recent developments in the design and application of advanced polymeric systems for precision agriculture related applications. The design criteria of the polymers employed to date, such as polymer structure, as well as the properties of polymer nanoparticles including shape and size will be discussed, and the key findings in the related area will be highlighted. Finally, we will identify future directions for the exploration of functional polymers with the ultimate aim of advancing sustainable agriculture.

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Synthesis and characterization of chitosan-g-poly(2-(furan-2-carbonyl)-acrylonitrile): Grafting of chitosan using a novel monomer prepared by a Baylis–Hillman reaction

Cited by 15 publications

References 25 publications

Ammonium Persulfate-initiated Graft Copolymerization of Methacrylamide onto Chitosan: Synthesis, Characterization and Optimization

Ammonium Persulfate-initiated Graft Copolymerization of Methacrylamide onto Chitosan: Synthesis, Characterization and Optimization

Antibacterial Coatings Based on Chitosan for Pharmaceutical and Biomedical Applications

Recent Trends in Advanced Polymer Materials in Agriculture Related Applications

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