Linked Life Data

2713430

Source:http://linkedlifedata.com/resource/pubmed/id/2713430

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-6-9
pubmed:abstractText
The bulk, surface and blood-contacting properties of a series of polyether polyurethanes, modified with three different polydimethylsiloxane (PDMS) macroglycol segments, were evaluated. The PDMS oligomers were terminated with hydroxy-tipped end groups of varying polarity. The effect of substituting the polytetramethylene oxide (PTMO) soft segment of a base polyurethane with 5 and 15 wt% of these PDMS-containing polyols was investigated. The ultimate tensile strength and elongation at break appeared to be the bulk properties most significantly affected by the addition of the PDMS-containing polyols. Underwater contact angle data indicate that the block copolymer surface became more hydrophilic with increasing PDMS content. In a vacuum, as determined from the ESCA data, the relatively non-polar PDMS soft segments preferentially oriented at the surface with increasing PDMS incorporation. Despite the variation in the surface properties, the blood compatibility of these polymers was not significantly affected by the addition of the PDMS-containing polyols.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0142-9612
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
23-32
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Bulk, surface and blood-contacting properties of polyether polyurethanes modified with polydimethylsiloxane macroglycols.
pubmed:affiliation
Department of Chemical Engineering, University of Wisconsin-Madison 53706.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't