TY  - JOUR
AU  - Blass, Johanna
AU  - Brunke, Jessica
AU  - Emmerich, Franziska
AU  - Przybylski, Cédric
AU  - Garamus, Vasil M
AU  - Feoktystov, Artem
AU  - Bennewitz, Roland
AU  - Wenz, Gerhard
AU  - Albrecht, Marcel
TI  - Interactions between shape-persistent macromolecules as probed by AFM
JO  - Beilstein journal of organic chemistry
VL  - 13
SN  - 1860-5397
CY  - Frankfurt, Main
PB  - Beilstein-Institut zur Förderung der Chemischen Wissenschaften
M1  - FZJ-2017-07526
SP  - 938 - 951
PY  - 2017
AB  - Water-soluble shape-persistent cyclodextrin (CD) polymers with amino-functionalized end groups were prepared starting from diacetylene-modified cyclodextrin monomers by a combined Glaser coupling/click chemistry approach. Structural perfection of the neutral CD polymers and inclusion complex formation with ditopic and monotopic guest molecules were proven by MALDI–TOF and UV–vis measurements. Small-angle neutron and X-ray (SANS/SAXS) scattering experiments confirm the stiffness of the polymer chains with an apparent contour length of about 130 Å. Surface modification of planar silicon wafers as well as AFM tips was realized by covalent bound formation between the terminal amino groups of the CD polymer and a reactive isothiocyanate–silane monolayer. Atomic force measurements of CD polymer decorated surfaces show enhanced supramolecular interaction energies which can be attributed to multiple inclusion complexes based on the rigidity of the polymer backbone and the regular configuration of the CD moieties. Depending on the geometrical configuration of attachment anisotropic adhesion characteristics of the polymer system can be distinguished between a peeling and a shearing mechanism.
LB  - PUB:(DE-HGF)16
C6  - pmid:28684975
UR  - <Go to ISI:>//WOS:000405164300001
DO  - DOI:10.3762/bjoc.13.95
UR  - https://juser.fz-juelich.de/record/839949
ER  -