Blends containing chitosan and poly(sodium-4-styrene sulphonate). Compatibility behavior

Castro, Cristian; Gargallo, Ligia; Radić, Deodato; Kortaberría, Galder; Mondragón, Iñaki

doi:10.1016/j.carbpol.2010.07.027

Cited by 19 publications

(12 citation statements)

References 30 publications

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“…Blending of polymers with good miscibility is considered to be a very convenient method to meet new requirements in material properties [1][2][3][4][5][6][7][8]. It is known that the surfaces of mixtures prepared from natural and synthetic polymers are important for their use in biomedical applications [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Influence of molecular weight on structure and rheological properties of microcrystalline chitosan mixtures

Lewandowska

2015

International Journal of Biological Macromolecules

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Section: Introductionmentioning

confidence: 99%

Influence of molecular weight on structure and rheological properties of microcrystalline chitosan mixtures

Lewandowska

2015

International Journal of Biological Macromolecules

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“…UV‐vis is a powerful tool for detecting interactions among two or more components in a mixture. Any displacements or diminution of the bands corresponding to the constituents of the blend provide information about the interaction of the molecules involved in the system . Figure shows a compilation of the absorption profiles for PEAM/CHD blends with different compositions.…”

Section: Resultsmentioning

confidence: 99%

“…AFM was used to analyze the morphologies of the PEAM and blends, as another complementary technique for determining the compatibility between the components, and to gain further insight into the interactions involved in the blending process.…”

Section: Resultsmentioning

confidence: 99%

Interaction of dendronized polymeric nanocomposites with isomeric cyclohexanediols

Alvarado

Fuentes

Alegría

et al. 2015

J of Applied Polymer Sci

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Dendronized poly(diethylaminoethyl methacrylamide) (PEAM) was studied in blends containing isomeric cyclic dialcohols. Monomers and polymers were characterized by spectroscopic measurements. The phase behaviors of blends of PEAM with 1,2-, 1,3-and 1,4-cyclohexanediols (1,2-CHD, 1,3-CHD and 1,4-CHD, respectively) were established. Transparent films of the blends exhibited a single glass-transition temperature (T g ). Thermogravimetric analysis (TGA) revealed the temperature at which the polymer releases the small molecules. UV-vis spectra of 1,3-CHD and 1,4-CHD derivatives showed an isosbestic point that indicated the association of the alcohols. FT-IR measurements showed shifts in several absorption bands. The results were analyzed in terms of the side-chain structure and the interactions involved. AFM measurements revealed differences between the polymer and the blends. Compatibilization of blends of PEAM/CHDs occurred via the formation of hydrogen bonds, although hydrophobic interactions could not be disregarded.

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“…For the modified SiO 2 , only one endothermic peak at 458°C is observed, attributed to the decomposition of !-methacryloxypropyl trimethoxy-silane with 90.2% residues. In the case of ASPB, a new endothermic peak appears at higher temperatures (490°C) [22] with 88.1% residues. It may be due to the thermal insulating property of SiO 2 particles.…”

Section: Determination Of Percentage Of Grafting (Pg%)mentioning

confidence: 98%

Synthesis and characterization of poly(sodium-p-styrenesulfonate)/modified SiO2 spherical brushes

Na¹,

Li²,

Zheng³

et al. 2012

Express Polym. Lett.

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Abstract. The multistep procedures for preparing novel anionic spherical polyelectrolyte brushes (ASPB) by grafting sodium-p-styrenesulfonate (SSS) from the surface of !-methacryloxypropyl trimethoxy-silane modified SiO 2 nanoparticles were demonstrated. The morphology of ASPB was characterized by Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). The core radius R c and hydrodynamic radius R h of ASPB measured by Zeta Potential/Particle Sizer (ZLS) were ca. 50nm and (84.5±1) nm respectively. The percentage of grafting (PG%) of polyelectrolyte brushes was 4.3% investigated by Thermo-gravimetric analysis (TGA). Detailed characterizations on ASPB were performed by cleaving the grafts from the anchoring surface. The molecular weight (M w ) and polydispersity (M w /M n ) of brushes were 1.788·10 3 g/mol and 1.6 respectively from Gel Permeation Chromatography (GPC) measurements. Moreover, R h and !-potential of ASPB in the presence of aqueous NaCl solutions of different concentrations were discussed.

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Blends containing chitosan and poly(sodium-4-styrene sulphonate). Compatibility behavior

Cited by 19 publications

References 30 publications

Influence of molecular weight on structure and rheological properties of microcrystalline chitosan mixtures

Influence of molecular weight on structure and rheological properties of microcrystalline chitosan mixtures

Interaction of dendronized polymeric nanocomposites with isomeric cyclohexanediols

Synthesis and characterization of poly(sodium-p-styrenesulfonate)/modified SiO2 spherical brushes

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