Chitosan/MWCNT composites prepared by thermal induced phase separation

Olivas–Armendáriz, I.; García-Casillas, Perla E.; Martínez-Sánchez, R.; Martínez‐Villafañe, A.; Martínez-Pérez, Carlos A.

doi:10.1016/j.jallcom.2009.10.205

Cited by 43 publications

(23 citation statements)

References 22 publications

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“…The pore diameter of the composites, however, showed an inverse relationship to the content of GO. Similar findings regarding the influence of fillers on composite microstructure have been reported in the literature .…”

Section: Resultssupporting

confidence: 90%

Preparation of thermoplastic polyurethane/graphene oxide composite scaffolds by thermally induced phase separation

Jing

Salick

et al. 2013

Polym. Compos.

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In this study, biomedical thermoplastic polyurethane/ graphene oxide (TPU/GO) composite scaffolds were successfully prepared using the thermally induced phase separation (TIPS) technique. The microstructure, morphology, and thermal and mechanical properties of the scaffolds were characterized by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), and compression tests. Furthermore, NIH 3T3 fibroblast cell viability on the porous scaffolds was investigated via live/dead fluorescent staining and SEM observation. FTIR and Raman results verified the presence of GO in the composites. SEM images showed that the average pore diameter of the composite scaffolds decreased as the amount of GO increased. Additionally, the surface of the specimens became rougher due to the embedded GO. The compressive modulus of composite specimens was increased by nearly 200% and 300% with the addition of 5% and 10% GO, respectively, as compared with pristine TPU. 3T3 fibroblast culture results showed that GO had no apparent cytotoxicity. However, high loading levels of GO may delay cell proliferation on the specimens.

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Section: Resultssupporting

confidence: 90%

Preparation of thermoplastic polyurethane/graphene oxide composite scaffolds by thermally induced phase separation

Jing

Salick

et al. 2013

Polym. Compos.

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“…A variety of solvents have been used to date: water [8], camphene [9], tert-butyl alcohol (TBA) [10], naphthalene/camphor [11], dioxane [12], terpene [13], deep eutectic solvents [14], or carbon dioxide [15]. Various terms have been coined for the process: ice templating [16], freeze-casting [1], crystal-templating [17], directional freeze-drying [18], freeze-thaw [19] freeze gelation [20], ice-segregation-induced self-assembly [21], or thermally induced phase separation [22]. Frozen solvent templating [23] is probably the most generic.…”

Section: Introductionmentioning

confidence: 99%

A meta-analysis of the mechanical properties of ice-templated ceramics and metals

Deville

Meille

Seuba

2015

Science and Technology of Advanced Materials

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Ice templating, also known as freeze casting, is a popular shaping route for macroporous materials. Over the past 15 years, it has been widely applied to various classes of materials, and in particular ceramics. Many formulation and process parameters, often interdependent, affect the outcome. It is thus difficult to understand the various relationships between these parameters from isolated studies where only a few of these parameters have been investigated. We report here the results of a meta analysis of the structural and mechanical properties of ice templated materials from an exhaustive collection of records. We use these results to identify which parameters are the most critical to control the structure and properties, and to derive guidelines for optimizing the mechanical response of ice templated materials. We hope these results will be a helpful guide to anyone interested in such materials.

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“…These polymers can bring a hydrophilic surface on CNT and create more sorption sites. One of the common polymers that is used for the modification of CNT is chitosan (CS) [19,20]. As an inexpensive, widely used and nontoxic polysaccharide biopolymer, CS displays excellent film-forming ability, high hydrophilicity, and good biocompatibility [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotube–chitosan composite electrodes for electrochemical removal of Cu(II) ions

Zhan

Pan

Nie

et al. 2011

Journal of Alloys and Compounds

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Chitosan/MWCNT composites prepared by thermal induced phase separation

Cited by 43 publications

References 22 publications

Preparation of thermoplastic polyurethane/graphene oxide composite scaffolds by thermally induced phase separation

Preparation of thermoplastic polyurethane/graphene oxide composite scaffolds by thermally induced phase separation

A meta-analysis of the mechanical properties of ice-templated ceramics and metals

Carbon nanotube–chitosan composite electrodes for electrochemical removal of Cu(II) ions

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