Polyvinylpyridine–ethanol systems

Akin, H.; Hasırcı, Nesrin

doi:10.1002/app.1992.070460719

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Bicontinuous morphologies represent transient non‐equilibrium stages in the swelling‐induced transformation of bulk asymmetric PS‐ b ‐P2VP into PS‐ b ‐P2VP micelles in ethanolic solutions. The Flory–Huggins interaction parameter of ethanol and P2VP was reported to be 0.499, a value typical of good solvent/polymer systems 31. Ethanol readily diffuses through glassy PS and can swell even isolated P2VP domains surrounded by PS within minutes 32.…”

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confidence: 99%

Nanoporous Metal Membranes with Bicontinuous Morphology from Recyclable Block‐Copolymer Templates

et al. 2010

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Nondestructive preparation of bicontinuous nanoporous metal membranes by replication of bicontinuous nanoporous polymeric membranes consisting of recoverable asymmetric block copolymers (BCPs) is reported. The BCP membranes are generated by swelling the minority domains of the BCP with selective solvents accompanied by reconstruction of the glassy matrix formed by the majority component (see figure).

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confidence: 99%

Nanoporous Metal Membranes with Bicontinuous Morphology from Recyclable Block‐Copolymer Templates

et al. 2010

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“…The FTIR spectra of gelatin‐poly(HEMA‐ co ‐AM) IPN is shown in Figure 2, which clearly shows the presence of gelatin, poly(HEMA) and polyacrylamide functionals in the matrix. The IR spectrum shows strong absorption bands at 3419 cm −1 and 1673 cm −1 , which are assigned to N H and CO stretching respectively, of gelatin 24. The presence of HEMA is confirmed by the observed bands at 1723 cm −1 (CO stretching), 1158 cm −1 (OCC stretching), and 1459 cm −1 (OH bending).…”

Section: Resultsmentioning

confidence: 77%

Preparation and characterization of macroporous poly(2‐hydroxyethyl methacrylate)‐based biomaterials: Water sorption property and in vitro blood compatibility

Bajpai

Kankane

2007

J of Applied Polymer Sci

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A semi-interpenetrating polymer network (IPN) comprising gelatin and poly(2-hydroxyethyl methacrylate-co-acrylamide) was prepared and characterized by FTIR, environmental scanning electron microscopy (ESEM) and differential scanning calorimetry (DSC) techniques. The water sorption potential of the prepared semi-IPNs was investigated for varying chemical architecture of the IPN, and experimental conditions such as pH, temperature and ionic strength of the swelling media. The semi-IPNs were also judged for in vitro blood compatibility by performing blood clot, percent hemolysis, protein adsorption and platelet adhesion tests.

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Preparation and characterization of crosslinked gelatin microspheres

Akin

Hasırcı

1995

J of Applied Polymer Sci

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SYNOPSISGelatin, a natural macromolecule, is widely used in biomedical and biotechnological applications and is a good candidate for preparation of microspheres and microcapsules for the purpose of controlled release applications of drugs. In this study, gelatin microspheres crosslinked with glutaraldehyde with different crosslink densities were prepared by the phase separation technique induced by temperature change. The chemical structures of the microspheres were examined with FTIR and formation of crosslinks were observed. Topography, size, and shape of the microspheres were examined with scanning electron microscopy (SEM) and a narrow size distribution (approximately 1 pm) was observed. Thermal properties of microspheres were analyzed by differential scanning calorimetry and an increase in glass transition temperature values with an increase in crosslinking was observed. For each sample, dry and swollen densities of microspheres were determined by pycnometric methods and the average molecular weights between the crosslinks, Mc, were calculated from the equilibrium swelling experiments using the modified Flory-Rehner thermodynamic theory. A decrease in percent solvent content values with decreasing average molecular weight between the crosslinks was observed.

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Polyvinylpyridine–ethanol systems

Cited by 4 publications

References 9 publications

Nanoporous Metal Membranes with Bicontinuous Morphology from Recyclable Block‐Copolymer Templates

Nanoporous Metal Membranes with Bicontinuous Morphology from Recyclable Block‐Copolymer Templates

Preparation and characterization of macroporous poly(2‐hydroxyethyl methacrylate)‐based biomaterials: Water sorption property and in vitro blood compatibility

Preparation and characterization of crosslinked gelatin microspheres

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