TY - GEN
T1 - RAFT copolymerization and its application to the synthesis of novel dispersants-intercalants-exfoliants for polymer-clay nanocomposites
T2 - Some interesting results from RAFT (Co)polymerization
AU - Moad, Graeme
AU - Li, Guoxin
AU - Pfaendner, Rudolf
AU - Postma, Almar
AU - Rizzardo, Ezio
AU - Thang, San
AU - Wermter, Hendrik
PY - 2006/12/1
Y1 - 2006/12/1
N2 - This paper will discuss aspects of (co)polymerization of acrylates with reversible addition-fragmentation chain transfer (RAFT). An explanation for bimodal molecular weight distributions observed when making high molecular weight acrylic polymers with narrow molecular weight distributions (M̄./M̄. <1.1) at high conversion involves copolymerization of the macromonomer formed by backbiting-β-scission. Evidence for this mechanism is provided. RAFT copolymerization is illustrated by the synthesis of novel copolymer intercalants/ exfoliants/dispersants for unmodified layered silicates (sodium montmorillonite) in polypropylene (PP) nanocomposites. Block and gradient copolymers were prepared based on a long chain acrylate (e.g. octadecyl acrylate, ODA) and various polar comonomers (e.g. acrylic acid, dimethylaminoethyl acrylate, maleic anhydride, methacrylic acid, N-vinyl pyrrolidone).
AB - This paper will discuss aspects of (co)polymerization of acrylates with reversible addition-fragmentation chain transfer (RAFT). An explanation for bimodal molecular weight distributions observed when making high molecular weight acrylic polymers with narrow molecular weight distributions (M̄./M̄. <1.1) at high conversion involves copolymerization of the macromonomer formed by backbiting-β-scission. Evidence for this mechanism is provided. RAFT copolymerization is illustrated by the synthesis of novel copolymer intercalants/ exfoliants/dispersants for unmodified layered silicates (sodium montmorillonite) in polypropylene (PP) nanocomposites. Block and gradient copolymers were prepared based on a long chain acrylate (e.g. octadecyl acrylate, ODA) and various polar comonomers (e.g. acrylic acid, dimethylaminoethyl acrylate, maleic anhydride, methacrylic acid, N-vinyl pyrrolidone).
UR - http://www.scopus.com/inward/record.url?scp=33748325397&partnerID=8YFLogxK
M3 - Conference Paper
AN - SCOPUS:33748325397
SN - 0841239916
SN - 9780841239913
T3 - ACS Symposium Series
SP - 514
EP - 532
BT - Controlled/Living Radical Polymerization from Synthesis to Materials
A2 - Matyjaszewski, Krzysztof
ER -