Linked Life Data

12555900

Source:http://linkedlifedata.com/resource/pubmed/id/12555900

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2003-1-30
pubmed:abstractText
Poly(ether ester amide) (PEEA) copolymers based on poly(ethylene glycol) (PEG), 1,4-butanediol, and dimethyl-7,12-diaza-6,13-dione-1,18-octadecanedioate (a diester-diamide monomer) were synthesized by a two-step polycondensation reaction. The obtained segmented copolymers are hydrophilic, with a water uptake of 24-340%. PEEA copolymers showed microphase separation, as observed by differential scanning calorimetry (DSC). The long spacing determined by small-angle X-ray scattering shows an increase in the hydrophilic domain size with increasing PEO content. By varying the copolymer composition, the E-modulus of PEEA could be varied between 61 and 427 MPa, with tensile strengths ranging from 12 to 39 MPa. The elongation at break can reach values up to 850%. The mechanical properties decrease with the uptake of water. However, PEEAs with a relatively low content of PEO still retain good tensile properties and are, in principle, suitable for biomedical applications.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0920-5063
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1337-52
pubmed:dateRevised
2008-2-20
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Phase separation and physical properties of PEO-containing poly(ether ester amide)s.
pubmed:affiliation
Institute for Biomedical Technology (BMTI), Department of Polymer Chemistry and Biomaterials, Faculty of Chemical Technology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't