Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/12248
Title: A Detailed Investigation of the Free Radical Copolymerization Behavior of n-Butyl Acrylate Macromonomers
Authors: Zorn, Anna-Marie
JUNKERS, Tanja 
Barner-Kowollik, Christopher
Issue Date: 2011
Publisher: AMER CHEMICAL SOC
Source: MACROMOLECULES, 44(17). p. 6691-6700
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).
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
Document URI: http://hdl.handle.net/1942/12248
ISSN: 0024-9297
e-ISSN: 1520-5835
DOI: 10.1021/ma201345m
ISI #: 000294585600011
Category: A1
Type: Journal Contribution
Validations: ecoom 2012
Appears in Collections:Research publications

Show full item record

SCOPUSTM   
Citations

12
checked on Sep 5, 2020

WEB OF SCIENCETM
Citations

14
checked on May 21, 2022

Page view(s)

84
checked on May 23, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.