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Abstract The effect of vortex‐induced mechanical stresses on the fluorescent properties of dye‐containing poly(ethylene glycol)‐block‐poly(lactic acid) (PEG‐b‐PLA) block copolymer micelles has been investigated. PEG‐b‐PLA block copolymer micelles containing fluorescent dyes, 3,3′‐dioctadecyloxacarbocyanine perchlorate (DiO) and/or 1,1′‐dioctadecyl‐3,3,3′,3′‐tetramethylindocarbocyanine perchlorate (DiI), are prepared by a simple one‐step procedure that involves the self‐assembly of block copolymers and spontaneous incorporation of hydrophobic dyes into the core of the micelles. Upon vortexing, the micelle dispersion samples showed a decrease in fluorescence intensity in a rotational speed‐ and time‐dependent manner. The results demonstrated that the vortexing can alter the fluorescent properties of the dye‐containing PEG‐b‐PLA block copolymer micelle dispersion samples, suggesting the potential utility of block copolymer micelles as a mechanical stress‐responsive nanomaterial.
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This content will become publicly available on August 27, 2025
Ethyl cellulose- block -poly(benzyl glutamate) block copolymer compatibilizers for ethyl cellulose/poly(ethylene terephthalate) blends
A block copolymer with the structure ethylcellulose-block-poly(benzy glutamate) was synthesizedviaring-opening polymerization and used as a compatibilizer to produce blends of ethylcellulose and poly(ethylene terephthalate).
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- Award ID(s):
- 2244483
- PAR ID:
- 10580241
- Editor(s):
- Luscombe, Christine; Anastasaki, Athina; Du_Prez, Filip; Frey, Holger; Hu, Rongrong; Klausen, Rebekka; Konkolewicz; Li, Zhibo; Li, Zi_Chen; Sardon, Haritz
- Publisher / Repository:
- Royal Society of Chemistry
- Date Published:
- Journal Name:
- Polymer Chemistry
- Volume:
- 15
- Issue:
- 34
- ISSN:
- 1759-9954
- Page Range / eLocation ID:
- 3501 to 3509
- Subject(s) / Keyword(s):
- compatibilization polysaccharide biopolymer polyester
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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