Krieg Andreas, Weber Christine, Hoogenboom Richard, Becer C Remzi, Schubert Ulrich S
Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University of Jena, Humboldtstr. 10, 07743, Jena, Germany.
Jena Center for Soft Matter (JCSM), Friedrich Schiller University of Jena, Humboldtstr. 10, 07743, Jena, Germany.
ACS Macro Lett. 2012 Jun 19;1(6):776-779. doi: 10.1021/mz300128p. Epub 2012 Jun 8.
To combine the advantages of poly(2-oxazoline)s (POx) and controlled radical polymerization (CRP) techniques, the cationic ring-opening polymerization (CROP) of 2-methyl-2-oxazoline (MeOx), 2-ethyl-2-oxazoline (EtOx), and 2--nonyl-2-oxazoline (NonOx) were terminated with a carboxylic acid functionalized chain transfer agent (CTA). The obtained PEtOx with a high degree of functionalization (DF) was used as macro-CTA for the reversible addition-fragmentation chain transfer (RAFT) polymerization of various vinylic monomers (styrene (St), methyl acrylate (MA), -butyl acrylate (BuA), acrylic acid (AA), ,-dimethyl acrylamide (DMAAm), and ,-dimethylaminoethylacrylate (DMAEA)) resulting in well-defined block copolymers. Thus, in this work we report a versatile route to combine poly(2-oxazoline)s prepared via CROP with RAFT polymerization for the synthesis of novel block copolymers.
为了结合聚（2-恶唑啉）（POx）和可控自由基聚合（CRP）技术的优点，用羧酸官能化链转移剂（CTA）终止2-甲基-2-恶唑啉（MeOx）、2-乙基-2-恶唑啉（EtOx）和2-壬基-2-恶唑啉（NonOx）的阳离子开环聚合（CROP）。将获得的具有高官能化度（DF）的PEtOx用作各种乙烯基单体（苯乙烯（St）、丙烯酸甲酯（MA）、丙烯酸丁酯（BuA）、丙烯酸（AA）、N,N-二甲基丙烯酰胺（DMAAm）和甲基丙烯酸N,N-二甲氨基乙酯（DMAEA））可逆加成-断裂链转移（RAFT）聚合的大分子CTA，从而得到结构明确的嵌段共聚物。因此，在本工作中，我们报道了一种通用方法，即将通过CROP制备的聚（2-恶唑啉）与RAFT聚合相结合，用于合成新型嵌段共聚物。
