TY  - JOUR
A1  - Hildebrand, Viet
A1  - Laschewsky, André
A1  - Zehm, Daniel
T1  - On the hydrophilicity of polyzwitterion poly (N, N-dimethyl-N(3-(methacrylamido)propyl)ammoniopropane sulfonate) in water, deuterated water, and aqueous salt solutions
JF  - Journal of biomaterials science : Polymer edition
KW  - polyzwitterion
KW  - sulfobetaine
KW  - synthesis
KW  - fluorescence label
KW  - upper critical solution temperature
KW  - isotope effect
KW  - anti-polyelectrolyte effect
Y1  - 2014
U6  - https://doi.org/10.1080/09205063.2014.939918
SN  - 0920-5063
SN  - 1568-5624
VL  - 25
IS  - 14-15
SP  - 1602
EP  - 1618
PB  - Routledge, Taylor & Francis Group
CY  - Abingdon
ER  - 
TY  - JOUR
A1  - Laschewsky, André
T1  - Structures and synthesis of zwitterionic polymers
JF  - Polymers
N2  - The structures and synthesis of polyzwitterions ("polybetaines") are reviewed, emphasizing the literature of the past decade. Particular attention is given to the general challenges faced, and to successful strategies to obtain polymers with a true balance of permanent cationic and anionic groups, thus resulting in an overall zero charge. Also, the progress due to applying new methodologies from general polymer synthesis, such as controlled polymerization methods or the use of "click" chemical reactions is presented. Furthermore, the emerging topic of responsive ("smart") polyzwitterions is addressed. The considerations and critical discussions are illustrated by typical examples.
KW  - review
KW  - polyzwitterion
KW  - polyampholyte
KW  - zwitterionic group
KW  - betaine
KW  - synthesis
KW  - monomer
KW  - polymerization
KW  - post-polymerization modification
Y1  - 2014
U6  - https://doi.org/10.3390/polym6051544
SN  - 2073-4360
VL  - 6
IS  - 5
SP  - 1544
EP  - 1601
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Herfurth, Christoph
A1  - Voll, Dominik
A1  - Buller, Jens
A1  - Weiss, Jan
A1  - Barner-Kowollik, Christopher
A1  - Laschewsky, André
T1  - Radical addition fragmentation chain transfer (RAFT) polymerization of ferrocenyl (meth)acrylates
JF  - Journal of polymer science : A, Polymer chemistry
N2  - We report on the controlled free radical homopolymerization of 1-ferrocenylethyl acrylate as well as of three new ferrocene bearing monomers, namely 4-ferrocenylbutyl acrylate, 2-ferrocenylamido-2-methylpropyl acrylate, and 4-ferrocenylbutyl methacrylate, by the RAFT technique. For comparison, the latter monomer was polymerized using ATRP, too. The ferrocene containing monomers were found to be less reactive than their analogues free of ferrocene. The reasons for the low polymerizability are not entirely clear. As the addition of free ferrocene to the reaction mixture did not notably affect the polymerizations, sterical hindrance by the bulky ferrocene moiety fixed on the monomers seems to be the most probable explanation. Molar masses found for 1-ferrocenylethyl acrylate did not exceed 10,000 g mol(-1), while for 4-ferrocenylbutyl (meth) acrylate molar masses of 15,000 g mol(-1) could be obtained. With PDIs as low as 1.3 in RAFT polymerization of the monomers, good control over the polymerization was achieved.
KW  - ferrocene
KW  - living radical polymerization (LRP)
KW  - monomers
KW  - radical addition fragmentation chain transfer (RAFT)
KW  - radical polymerization
KW  - redox polymers
KW  - synthesis
Y1  - 2012
U6  - https://doi.org/10.1002/pola.24994
SN  - 0887-624X
VL  - 50
IS  - 1
SP  - 108
EP  - 118
PB  - Wiley-Blackwell
CY  - Malden
ER  -