Linked Life Data

11888304

Source:http://linkedlifedata.com/resource/pubmed/id/11888304

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-3-12
pubmed:abstractText
The polymerization of dimethyl terephthalate and diethylene glycol by enzymic catalysis in toluene is described. The potential pi-pi interactions of the aromatic rings together with the relative flexibility of the diol segment have been regarded as synergy factors responsible for the formation of a pure cyclic compound. The so-called C2 macrocycle was characterized by (1)H and (13)C NMR, size-exclusion chromatography, differential scanning calorimetry, mass spectrometry, and X-ray diffraction on powder. Structurally speaking, it is made of two repeating units. The substitution of the central oxygen atom of the diol by -CH(2)- or -S- as well as the presence of ortho-substituents (-NH(2) or -NO(2)) on the phthalate were expected to disrupt the stacking of the phenyl groups more or less.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1525-7797
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
225-8
pubmed:meshHeading
pubmed:articleTitle
Lipase-catalyzed synthesis of a pure macrocyclic polyester from dimethyl terephthalate and diethylene glycol.
pubmed:affiliation
Laboratoire de Synthèse Macromoléculaire UMR 7610 "Chimie des Polymères", Université Pierre et Marie Curie, 4 place Jussieu, Case 184, F-75252 Paris cedex 05, France.
pubmed:publicationType
Journal Article