Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-12-25
pubmed:abstractText
The preparation of PolyHIPE foams containing poly(epsilon-caprolactone) from macromonomers by free radical homo- or copolymerization is described. The macromonomers are synthesized from PCL diols and are polymerized in the continuous phase of high internal phase emulsions (HIPEs). Subsequent drying yields low-density foams with cell diameters of 5-100 microm. Foam morphology, as determined by scanning electron microscopy, depends on the type of diluent (styrene, methyl methacrylate, or toluene) added to the emulsion organic phase and on the PCL content. Increasing the latter increases the continuous phase viscosity to a point where emulsion formation is impeded. Foam swelling in toluene, 2-propanol, and water was investigated by solvent imbibition and increased with increasing solvent hydrophobicity. Furthermore, it was found generally to decrease with increasing PCL content, due to increasing cross-link density. Swelling generally increased when higher molar mass PCL macromonomer was used due to the formation of a less tightly cross-linked network. One type of foam sample was shown to support the growth of human fibroblasts over a period of 2.5 days.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1525-7797
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
154-64
pubmed:dateRevised
2008-8-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Emulsion-derived foams (PolyHIPEs) containing poly(epsilon-caprolactone) as matrixes for tissue engineering.
pubmed:affiliation
Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't