TY  - JOUR
A1  - Marsat, Jean-Noel
A1  - Stahlhut, Frank
A1  - Laschewsky, André
A1  - von Berlepsch, Hans
A1  - Böttcher, Christoph
T1  - Multicompartment micelles from silicone-based triphilic block copolymers
JF  - Colloid and polymer science : official journal of the Kolloid-Gesellschaft
N2  - An amphiphilic linear ternary block copolymer was synthesised in three consecutive steps via reversible addition-fragmentation chain transfer polymerisation. Oligo(ethylene glycol) monomethyl ether acrylate was engaged as a hydrophilic building block, while benzyl acrylate and 3-tris(trimethylsiloxy)silyl propyl acrylate served as hydrophobic building blocks. The resulting "triphilic" copolymer consists thus of a hydrophilic (A) and two mutually incompatible "soft" hydrophobic blocks, namely, a lipophilic (B) and a silicone-based (C) block, with all blocks having glass transition temperatures well below 0 A degrees C. The triphilic copolymer self-assembles into spherical multicompartment micellar aggregates in aqueous solution, where the two hydrophobic blocks undergo local phase separation into various ultrastructures as evidenced by cryogenic transmission electron microscopy. Thus, a silicone-based polymer block can replace the hitherto typically employed fluorocarbon-based hydrophobic blocks in triphilic block copolymers for inducing multicompartmentalisation.
KW  - Amphiphiles
KW  - Triphilic block copolymers
KW  - Core-shell-corona micelles
KW  - RAFT
KW  - Cryo-TEM
KW  - Multicompartment micelles
Y1  - 2013
U6  - https://doi.org/10.1007/s00396-013-3001-2
SN  - 0303-402X
SN  - 1435-1536
VL  - 291
IS  - 11
SP  - 2561
EP  - 2567
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Marsat, Jean-Noel
A1  - Heydenreich, Matthias
A1  - Kleinpeter, Erich
A1  - Berlepsch, Hans V.
A1  - Boettcher, Christoph
A1  - Laschewsky, André
T1  - Self-Assembly into multicompartment micelles and selective solubilization by Hydrophilic-Lipophilic-Fluorophilic block copolymers
JF  - Macromolecules : a publication of the American Chemical Society
N2  - Amphiphilic linear ternary block copolymers (ABC) were synthesized in three consecutive steps by the reversible addition fragmentation chain transfer (RAFT) method. Using oligo(ethylene oxide) monomethyl ether acrylate, benzyl acrylate, and 1H,1H-perfluorobutyl acrylate monomers, the triblock copolymers consist of a hydrophilic (A), a lipophilic (B), and a fluorophilic (C) block. The block sequence of the triphilic copolymers was varied systematically to provide all possible variations: ABC, ACB, and BAC. All blocks have glass transition temperatures below 0 degrees C. Self-assembly into spherical micellar aggregates was observed in aqueous solution, where hydrophobic cores undergo local phase separation into various ultrastructures as shown by cryogenic transmission electron microscopy (cryo-TEM). Selective solubilization of substantial quantities of hydrocarbon and fluorocarbon low molar mass compounds by the lipophilic and fluorophilic block, respectively, is demonstrated.
Y1  - 2011
U6  - https://doi.org/10.1021/ma200032j
SN  - 0024-9297
VL  - 44
IS  - 7
SP  - 2092
EP  - 2105
PB  - American Chemical Society
CY  - Washington
ER  -