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Production of porous poly(ε-caprolactone)/silica hybrid membranes with patterned surface pores
- Source :
- Materials Letters. 65:1903-1906
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- This paper reports a novel way of synthesizing porous poly(e-caprolactone) (PCL)/silica hybrid membranes with a patterned surface pores by casting a mixture containing a PCL solution and sol–gel derived silica sol at room temperature. When the initial TEOS content in relation to the PCL content in the mixture was ≥ 20 vol.%, a highly porous structure containing patterned surface pores, ~ 40–70 μm in size, was formed successfully. The silica phase was hybridized uniformly with the PCL polymer without any noticeable phase separation, as confirmed by energy dispersive X-ray spectroscopy (EDS). The porosity increased from 4.5 to 39.2 vol.% with increasing initial TEOS content from 0 to 40 vol.%. However, the hybrid membranes prepared at an initial TEOS content of ≥ 20 vol.% showed a reasonably high tensile strength and elastic modulus, ranging from 7.6 to 5.0 MPa and 79 to 51 MPa, respectively.
- Subjects :
- chemistry.chemical_classification
Nanocomposite
Materials science
Mechanical Engineering
Polymer
Condensed Matter Physics
chemistry.chemical_compound
Membrane
chemistry
Mechanics of Materials
Phase (matter)
Ultimate tensile strength
General Materials Science
Composite material
Porosity
Elastic modulus
Caprolactone
Subjects
Details
- ISSN :
- 0167577X
- Volume :
- 65
- Database :
- OpenAIRE
- Journal :
- Materials Letters
- Accession number :
- edsair.doi...........2e84950f9614ad85f939129bef78a216