Polymerization-induced self-assembly of thermoresponsive micelles and their lubrication adaptivity
收藏中国科学院兰州化学物理研究所科学数据中心2025-12-12 更新2026-01-10 收录
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资源简介：
Responsive materials have significant application value because of their ability to actively adjust their structure or properties
in response to external stimuli. Poly(N-isopropylacrylamide) (PNIPAM) is widely used to form micelles, particularly for
drug delivery, because its lower critical solution temperature (LCST) is close to body temperature. However, the preparation
of micelles based on PNIPAM block copolymers often involves complex processes, which limit their broader application.
Here, we employed polymerization-induced self-assembly (PISA) combined with in situ crosslinking to synthesize stabilized
thermoresponsive micelles, such as poly(glycerol methacrylate)-b-poly(N-isopropylacrylamide)-B (PGMAx-b-PNIPAMy-
B), which are spherical micelles with a thermoresponsive core of PNIPAM and a crosslinked shell of PGMA formed by
sodium tetraborate decahydrate. The micelles exhibited rapid and reversible self-assembly and collapsed at 31 °C, enabling
temperature regulation through light transmittance, which makes them suitable for smart window applications. Furthermore,
these micelles demonstrated excellent friction-reducing and wear-resistant properties at various temperatures (25–36 °C) and
under various loads (20–70 N), indicating their adaptive lubrication as additives. This work presents the facile fabrication of
thermoresponsive micelles and expands the application of PISA technology in the tribological field.
提供机构：
中国科学院兰州化学物理研究所科学数据中心
创建时间：
2025-12-12
