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BibTeX
Microstructure of triblock copolymers in asphalt oligomers
Journal of polymer science. Part B, Polymer physics, 1997-12, Vol.35 (17), p.2857-2877
Ho, Rong-Ming
Adedeji, Adeyinka
Giles, David W.
Hajduk, Damian A.
Macosko, Christopher W.
Bates, Frank S.
1997
Details
Autor(en) / Beteiligte
Ho, Rong-Ming
Adedeji, Adeyinka
Giles, David W.
Hajduk, Damian A.
Macosko, Christopher W.
Bates, Frank S.
Titel
Microstructure of triblock copolymers in asphalt oligomers
Ist Teil von
Journal of polymer science. Part B, Polymer physics, 1997-12, Vol.35 (17), p.2857-2877
Ort / Verlag
New York: John Wiley & Sons, Inc
Erscheinungsjahr
1997
Link zum Volltext
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
A model asphalt has been separated into two parts, asphaltene and maltene, through solvent extraction by n‐heptane. The interactions of asphaltene and maltene with the triblock copolymer poly(styrene‐b‐(ethylene‐co‐butylene)‐b‐styrene) (SEBS) were investigated by transmission electron microscopy (TEM), small‐angle X‐ray scattering (SAXS), dynamic mechanical analysis (DMA), and differential scanning calorimetry (DSC). Asphaltene was found to be essentially immiscible with both blocks of SEBS, while maltene was miscible with SEBS. An unusual sequence of morphological transformations of SEBS microstructure with respect to the addition of maltene was observed. The morphology transformed from hexagonal cylinder, to perforated layers, to lamellae and then back to the original hexagonal cylinder. The observed transformation reflects a limited solubility for both S and EB domains: at lower concentration maltene is a preferential additive for S domains, while increasing concentration the swelling of EB‐rich microdomains by maltene becomes significant. The basic understanding of the interactions of the components of asphalt with SEBS gives a simple path to characterize and predict the microstructure of triblock copolymers in asphalt oligomers. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35: 2857–2877, 1997
Sprache
Englisch
Identifikatoren
ISSN: 0887-6266
eISSN: 1099-0488
DOI: 10.1002/(SICI)1099-0488(199712)35:17<2857::AID-POLB10>3.0.CO;2-6
Titel-ID: cdi_crossref_primary_10_1002__SICI_1099_0488_199712_35_17_2857__AID_POLB10_3_0_CO_2_6
Format
–
Schlagworte
Applied sciences
,
asphalt
,
block copolymer
,
Exact sciences and technology
,
microstructure
,
oligomer
,
Organic polymers
,
Physicochemistry of polymers
,
Properties and characterization
,
SAXS
,
SEBS
,
Structure, morphology and analysis
,
TEM
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