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http://hdl.handle.net/1942/12248
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DC Field | Value | Language |
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dc.contributor.author | Zorn, Anna-Marie | - |
dc.contributor.author | JUNKERS, Tanja | - |
dc.contributor.author | Barner-Kowollik, Christopher | - |
dc.date.accessioned | 2011-10-24T15:04:25Z | - |
dc.date.available | NO_RESTRICTION | - |
dc.date.available | 2011-10-24T15:04:25Z | - |
dc.date.issued | 2011 | - |
dc.identifier.citation | MACROMOLECULES, 44(17). p. 6691-6700 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | http://hdl.handle.net/1942/12248 | - |
dc.description.abstract | The free radical copolymerization of macromonomers with low molecular weight monomers represents a versatile tool for the formation of statistical copolymers featuring pendant side chains. In the current study n-butyl acrylate macromonomer (BAMM) has been synthesized via high temperature acrylate synthesis in a one-pot one-step procedure and copolymerized with benzyl acrylate (BzA) as a comonomer up to 40% conversion in a free radical copolymerization with 1,1'-azobis(isobutyronitrile) (AIBN) as a source of radicals. The copolymers poly(BAMM)-co-poly(BzA) are fully characterized via size exclusion chromatography (SEC), nuclear magnetic resonance spectroscopy (NMR), and liquid adsorption chromatography at critical conditions (LACCC). The achievable molecular eight Of the synthesized poly(BAMM)-co-poly(BzA) lies between 8000 and 77 000 g mol(-1) with a polydispersity of 1.30-2.12. Calculated copolymer compositions from the integrals of the specific resonances H(ar) and CH(2) of the BzA compared to CH(2) of the BAMM have been subjected to a (terminal model) Mayo-Lewis analysis, resulting in estimated reactivity ratios at similar to 40% conversion of r(BzA) = 2.46 and r(BAMM) = 1.79, indicating a copolymer composition of F(BA) < 0.65 for the copolymers derived from f(BzA) > 0.9 up to a copolymer composition of FBA > 0.9 for copolymers with a cornonomer feed of f(BzA) < 0.6. The poly(BAMM)-co-poly(BzA) have been analyzed under critical conditions of n-butyl acrylate (BA) on a normal phase column to obtain an image of the generated poly(BAMM)-co-poly(BzA). | - |
dc.description.sponsorship | Financial support by the German Research Council (DFG) for the current work is gratefully acknowledged. C.B.-K. acknowledges additional funding for the current project from the Karlsruhe Institute of Technology (KIT) in the context of the Excellence Initiative for leading German universities as well as funding from the Ministry of Science and Arts of the state of Baden-Wurttemberg. The authors thank Christina Schmid for helpful discussions regarding the LACCC measurements. | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | A Detailed Investigation of the Free Radical Copolymerization Behavior of n-Butyl Acrylate Macromonomers | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 6700 | - |
dc.identifier.issue | 17 | - |
dc.identifier.spage | 6691 | - |
dc.identifier.volume | 44 | - |
local.format.pages | 10 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | [Junkers, T] Univ Hasselt, Polymer React Design Grp, Inst Mat Res IMO, BE-3590 Diepenbeek, Belgium [Zorn, AM; Barner-Kowollik, C] Karlsruhe Inst Technol KIT, Inst Tech Chem & Polymerchem, Preparat Macromol Chem, D-76128 Karlsruhe, Germany thomas.junkers@uhasselt.be; christopher.barner-kowollik@kit.edu | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.bibliographicCitation.oldjcat | A1 | - |
dc.identifier.doi | 10.1021/ma201345m | - |
dc.identifier.isi | 000294585600011 | - |
item.fullcitation | Zorn, Anna-Marie; JUNKERS, Tanja & Barner-Kowollik, Christopher (2011) A Detailed Investigation of the Free Radical Copolymerization Behavior of n-Butyl Acrylate Macromonomers. In: MACROMOLECULES, 44(17). p. 6691-6700. | - |
item.accessRights | Closed Access | - |
item.contributor | Zorn, Anna-Marie | - |
item.contributor | JUNKERS, Tanja | - |
item.contributor | Barner-Kowollik, Christopher | - |
item.fulltext | No Fulltext | - |
item.validation | ecoom 2012 | - |
crisitem.journal.issn | 0024-9297 | - |
crisitem.journal.eissn | 1520-5835 | - |
Appears in Collections: | Research publications |
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