期刊
REACTIVE & FUNCTIONAL POLYMERS
卷 181, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.reactfunctpolym.2022.105459
关键词
Polyisoprene; Cyclodextrins; Supramolecular encapsulation; MALDI-TOF MS; Morphological properties
资金
- Ministry of Research, Innovation and Digitization, CNCS - UEFISCDI
- [PN-III-P4-PCE-2021-0906]
We report the synthesis of a new semi-polyrotaxane (SR) architecture with a coverage ratio of about 34% by encapsulating poly(isoprene) (PI) chains into 2-hydroxypropyl-beta-cyclodextrins (HP beta CD) cavities. The complexation ability of HP beta CD with PI polymer was confirmed, and the thermal, morphological, and surface properties of the PI/HP beta CD SR were analyzed.
We report the synthesis of a new semi-polyrotaxane (SR) architecture with a coverage ratio of about 34% by encapsulation of the poly(isoprene) (PI) chains into the 2-hydroxypropyl-beta-cyclodextrins (HP beta CD) cavities. The complexation ability of HP beta CD (host) macrocycle molecules with PI (guest) polymer was proved by UV-vis ti-trations in ethanol and molecular docking computation. The matrix-assisted laser desorption ionization mass spectroscopy (MALDI-TOF MS) allows us to estimate the average molecular weight of the PI/ HP beta CD SR, which prove the formation of the supramolecular architecture. The thermal and morphological properties of the PI/ HP beta CD SR were analyzed and compared with the naked polymer. The water contact angle measurements indicated a hydrophilic surface of the PI/ HP beta CD SR film compared with the hydrophobic of PI counterpart. The roughness parameters analyzed by AFM provided evidence for many changes of the surface topography of the PI/ HP beta CD SR film compared with those of the PI polymer.
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