We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Nanofishing of a Single Polymer Chain: Temperature‐Induced Coil–Globule Transition of Poly(<italic>N</italic>‐isopropylacrylamide) Chain in Water.
- Authors
Liang, Xiaobin; Nakajima, Ken
- Abstract
Abstract: The nanofishing of a telechelic thiol‐terminated poly(<italic>N</italic>‐isopropylacrylamide) (PNIPAM) single polymer chain from an Au (111) substrate in aqueous solution is investigated by atomic force microscopy. The obtained force–extension curves show two typical profiles: one is in good agreement with a so‐called worm‐like chain model, whereas the other is characterized by a Rayleigh–Plateau constant force. The appearance of the force plateau region is in agreement with the theoretical predictions of a pearl‐necklace model. For the first time, the temperature‐dependent interfacial free energy is obtained between PNIPAM and water, and it is found that it is the cause of the lower‐critical‐solution‐temperature‐type phase transition seen in PNIPAM/water system.
- Subjects
POLYMER structure; THIOLS; AQUEOUS solutions; ATOMIC force microscopy; PHASE transitions
- Publication
Macromolecular Chemistry & Physics, 2018, Vol 219, Issue 3, p1
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201700394