Linked Life Data

12959598

Source:http://linkedlifedata.com/resource/pubmed/id/12959598

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2003-9-8
pubmed:abstractText
In situ annealing and melting of folded-chain single crystals of poly(l-lactic acid) (PLLA) was examined by temperature-controlled atomic force microscopy (AFM). Prominent changes in the crystal appearance during annealing could be followed in real time by the AFM at temperatures above the original crystallization temperature. Thickening of the crystal edges could be occasionally observed, and this indicates that the crystal edges are less perfect than the central, well-ordered regions. At higher annealing temperatures, melting of the unthickened part started. The melting of the unthickened region progressed from the boundaries of the thickened portion normal to the growth face, rather than to the folding surfaces. In addition, it is suggested that melting also initiates at defective or distorted sites in the crystal as revealed by transmission electron microscopy (TEM) and AFM.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1525-7797
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1301-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Annealing and melting behavior of poly(l-lactic acid) single crystals as revealed by in situ atomic force microscopy.
pubmed:affiliation
Polymer Chemistry Laboratory, RIKEN Institute, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan. mfujita@postman.riken.go.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't