Synthesis and morphological behavior of model linear and miktoarm star copolymers of 2-methyl-1,3-pentadiene and styrene
| dc.contributor.author | Mavroudis, A. | en |
| dc.contributor.author | Avgeropoulos, A. | en |
| dc.contributor.author | Hadjichristidis, N. | en |
| dc.contributor.author | Thomas, E. L. | en |
| dc.contributor.author | Lohse, D. J. | en |
| dc.date.accessioned | 2015-11-24T17:39:10Z | |
| dc.date.available | 2015-11-24T17:39:10Z | |
| dc.identifier.issn | 0897-4756 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/14601 | |
| dc.rights | Default Licence | - |
| dc.subject | living anionic-polymerization | en |
| dc.subject | double-graft-copolymers | en |
| dc.subject | block-copolymers | en |
| dc.subject | n-butyllithium/n,n,n',n'-tetramethylethylenediamine system | en |
| dc.subject | 1,3-cyclohexadiene polymers | en |
| dc.subject | triblock copolymers | en |
| dc.subject | diblock copolymers | en |
| dc.subject | molecular-weight | en |
| dc.subject | a(2)b(2) star | en |
| dc.subject | branch-points | en |
| dc.title | Synthesis and morphological behavior of model linear and miktoarm star copolymers of 2-methyl-1,3-pentadiene and styrene | en |
| heal.abstract | Three linear diblock copolymers (PS-b-P2MP), two 3-miktoarm [PS(P2MP)(2)] copolymers, and two 4-miktoarm star copolymers [PS(P2MP)(3)] of styrene (S) and 2-methyl-1,3-pentadiene (2MP) were synthesized by anionic polymerization/high vacuum techniques and controlled chlorosilane chemistry. Molecular characterization of the samples was carried out by size exclusion chromatography (SEC), membrane osmometry (MO), low-angle laser light scattering (LALLS), and H-1 NMR spectroscopy, and indicated a high degree of molecular and compositional homogeneity. All samples had approximately the same total (M) over bar (w) (similar to100 000), different compositions, and high 1,4-microstructure for the P2MP blocks. The morphological behavior was determined via transmission electron microscopy (TEM), small-angle X-ray scattering (SAXS), and differential scanning calorimetry (DSC). The experimental results were compared with those found for PS/PI block copolymer systems and with Milner's theoretical prediction. Significant discrepancies were found. Also, it is the first time that two morphologies (lamellae/double gyroid) coexist in a neat material, and especially in a 4-miktoarm star copolymer. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.1021/Cm021360j | - |
| heal.identifier.secondary | <Go to ISI>://000182956200011 | - |
| heal.identifier.secondary | http://pubs.acs.org/doi/pdfplus/10.1021/cm021360j | - |
| heal.journalName | Chemistry of Materials | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2003 | - |
| heal.publisher | American Chemical Society | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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