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Updated: Jun 13, 2025

Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils
07:01

Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils

Published on: January 25, 2018

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膨胀:聚合物固体对乳液稳定性的影响

Ashley N Mapile1, Lawrence F Scatena1

  • 1University of Oregon Department of Chemistry and Biochemistry, 1253 University of Oregon, Eugene, OR 97403, USA. scat@uoregon.edu.

Soft matter
|September 11, 2024
PubMed
概括

聚烯酸) 通过控制硬质障碍来稳定疏水乳液,用于药物输送. 这种聚合物在广泛的温度范围内保持着合体稳定性,对制药应用有希望.

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The presence of electron-donating, electron-withdrawing, or conjugating groups adjacent to a radical center, imparts electronic stabilization to the radicals. Examples of such electronically-stabilized radicals are triphenylmethyl, tetramethylpiperidine‐N‐oxide, and 2,2‐diphenyl‐1‐picrylhydrazyl. These radicals are remarkably stable and are known as persistent radicals. Some of the persistent radicals can even be isolated and purified.
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Orally administered drugs primarily enter the systemic circulation via passive diffusion through the intestinal membranes. The drug's absorption is influenced by drug stability in the gastrointestinal GI tract, membrane permeability, the surface area available for absorption, luminal drug concentration, and residence time in the lumen. Drug permeability can be enhanced by adjusting the lipophilicity, polarity, or molecular size of the drug, promoting its passive transport across intestinal...
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