Linked Life Data

16008418

Source:http://linkedlifedata.com/resource/pubmed/id/16008418

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
15
pubmed:dateCreated
2005-7-12
pubmed:abstractText
Layered silicates were intercalated with comb-branched copolymers consisting of a hydrophobic polystyrene-b-poly(ethylene/butylene)-b-polystyrene (SEBS) backbone and multiple pendants of poly(oxyalkylene) (POA) quaternary ammonium salts. The requisite intercalating agents were synthesized by grafting POA amines on the maleated SEBS. The corresponding SEBS-POA amine salts were found to have two functions, the capability to emulsify toluene/water mixtures to fine particle sizes of 60-70 nm in diameter and to exchange ions with sodium montmorillonite. The resulting silicate hybrids were characterized by X-ray diffraction and transmission electron microscopy. Two types of intercalations with silicate d spacing of 18 and 50 A were obtained, in which the dissimilarity is attributed to disparate polymer incorporations, POA pendants only or the combination of both the SEBS backbone and POA in the gallery. Furthermore, the two conformations of polymer-intercalated silicates are reversibly transformable by varying emulsion conditions, micelle sizes, and solvents.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jul
pubmed:issn
0743-7463
pubmed:author
pubmed:issnType
Print
pubmed:day
19
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
7023-8
pubmed:year
2005
pubmed:articleTitle
Emulsion intercalation of smectite clays with comb-branched copolymers consisting of multiple quaternary amine salts and a poly(styrene-butadiene-styrene) backbone.
pubmed:affiliation
Department of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan.
pubmed:publicationType
Journal Article