Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Poly 2-cinnamoylethyl

Fig. 3.23 Coronal thickness, A a. plotted as a function of NX fv f°r micelles formed by PS-poly(2-cinnamoylethyl metharylate) diblocks in cyclopentane (Tao et at. 1997). This yields a straight line in accord with the predictions of scaling theory for the micellar radius (the core radius for these micelles was small enough to be neglected, then RA - R). Fig. 3.23 Coronal thickness, A a. plotted as a function of NX fv f°r micelles formed by PS-poly(2-cinnamoylethyl metharylate) diblocks in cyclopentane (Tao et at. 1997). This yields a straight line in accord with the predictions of scaling theory for the micellar radius (the core radius for these micelles was small enough to be neglected, then RA - R).
Polystyrene-Wock-poly(2-cinnamoylethyl methacrylate) Adsorption Reactions of Poly(methyl methacrylate)... [Pg.150]

Dingv JF, Liu GJ et al (1997) Multiple morphologies of polyisoprene-block-poly (2-cinnamoylethyl methacrylate) and polystyrene-block-poly(2-cinnamoylethyl methacrylate) micelles in organic solvents. Polymer 38 5497-5501... [Pg.187]

Related thermo-sensitive, cross-linked polymer vesicles were also formed by self-assembly of poly(2-cinnamoylethyl methacrylate)-W< cfc-poly((V-isopropylacry-lamide) (PCEMA61 — fc—PNIPAM22) copolymer and subsequent photo-crosslinking of the PCEMA shells [228]. The vesicles can load a large amount of 4-aminopyridine (Apy) and release the compound at a tunable rate depending on temperature. [Pg.149]

Synthesis and Characterization of Poly(isobutylene-b-mcthyl vinyl ether) Light-Scattering Studies of Poly(ethylene-co-butylene) Polystyrcne-Moc -poly(2-cinnamoylethyl methacrylate) Adsorption IR Spectroscopic Analysis of Poly(l/f,l/f-fluoroalkyl Ot-fluoroacrylate)... [Pg.284]

Figure 28 Bulk assembly into cylindrical structures as demonstrated by TEM micrographs. (Upper left) Ordered structure of polystyrenei250-Wock-poly (2-cinnamoylethyl methacrylate)i58. (Upper right) Nanofibers obtained from the ordered film. (Lower left) Film of PS-P-P4VP cast from TCE. Figure 28 Bulk assembly into cylindrical structures as demonstrated by TEM micrographs. (Upper left) Ordered structure of polystyrenei250-Wock-poly (2-cinnamoylethyl methacrylate)i58. (Upper right) Nanofibers obtained from the ordered film. (Lower left) Film of PS-P-P4VP cast from TCE.
PS-polydimethylsiloxane (PS-PDMS), polyimides containing thermally labile blocks such as poly(methyl methacrylate) (PMMA) or poly(propylene oxide) (PPO), poly(f-butylacrylate)-b-poly(2-cinnamoylethyl methacrylate) (PtBAPCEMA), poly-styrene-b-poly(methyl methacrylate) (PS-b-PMMA), PS-poly(perfluorooctylethyl methacrylate) (PS-PFMA), PS-polylactide (PS-PLA), and PS-b-poly-4-vinylpyridine (PS-PVP). [Pg.244]

Nanocapsules prepared by the polymerization of rather complex entities were made by Stewart and Lui [66], who stabilized block copolymer vesicles made of polyisoprene-b-poly(2-cinnamoylethyl methacrylate) diblock copolymers by UV crosslinking. A similar approach using block copolymer building blocks was used by Meier and colleagues, who generated nanocapsules by crossKnking polymerization of ABA triblock copolymer vesicles [67], the size of which can be controlled in the range of 50 nm up to 500 nm. Due to their crosslinked structure, both the Uu and the Meier nanocapsules are shape-persistent, even after their isolation from aqueous solution. [Pg.41]

Nanostructures like hollow tubes have attracted much attention mainly to meet the demand for smaller electronic devices. Tubes can be obtained using the sculpturing method. Liu and co-workers synthesized hollow nanotubes using triblock copolymers.The triblock copolymer poly(isoprene)-Z>/ocA -poly(2-cinnamoylethyl methacrylate)-Z)ZocA -poly(tert-bulyl aciylate) (PI-Z>-PCEMA-Z)-PtBA) containing 130 isoprene, 130 CEMA, and 800 fBA units formed self-assembled cylindrical micelles in methanol. [Pg.191]

Liu G, Ding J, Qiao L, Guo A, Dymov BP, Gleeson JT, Saijo K (1999) Polystyrene-block-poly(2-cinnamoylethyl methacrylate) nanofibers— preparation, characterization, and liquid crystalline properties. Chem Eur J 5(9) 2740-2749. doi 10.1002/(SICl)1521-3765(19990903)5 9<2740 AID-CHEM2740>3.0.CO 2-V... [Pg.427]

Ding, J. and Liu, G. (1998) Polystyrene block poly(2-cinnamoylethyl methacrylate) nanospheres with cross-linked shells. Macromolecules, 31,6554. [Pg.523]

Ding, J.F. and Liu, G.J. (1997) Polyisoprene-Wock-poly(2-cinnamoylethyl methacrylate) vesicles and their aggregates. Macromolecules, 30,655-657. [Pg.758]

Stewart, S. and Liu, G. (2000) Block copolymer nanotubes. Angewandte Chemie-Intemational Edition, 39,340-344. Stewart, S. and Liu, G.J. (1999) Hollow nanospheres rompolyisoprene-Wock-poly(2-cinnamoylethyl methacrylate)- /ock-poly(tert-butyl acrylate). Chemistry of Materials, 11,1048-1054. [Pg.761]

Liu, G.J., Ding, J.F., Qiao, L.J., Guo, A., Dymov, B.P., Gleeson, J.T., Hashimoto, T., Saijo, K., 1999a. Polystyrene-block-poly (2-cinnamoylethyl methacrylate) nanofibers — preparation, characterization, and liquid crystalline properties. Chemistry-A European Journal 5, 2740-2749. [Pg.229]

A fairly comprehensive study was reported for the copolymer exchange rate in micellar solutions of poly(styrene)-poly(2-cinnamoylethyl methacrylate) (PS-PCEMA) in tetrahydrofuran/cyclopentane... [Pg.203]

The increase of fluorescence intensity with time associated to the capture of pyrene by poly(styrene)-poly(meth-acrylic acid) micelles or the capture of perylene by poly(2-cinnamoylethyl methacrylate)-poly(acrylic acid) micelles revealed a two-step process. For the first system, the analysis of the slow process (probe penetration in the micelle core) using the same diffusion equation as for the release process yielded a value of the diffusion coefficient close to that inferred from the release of pyrene by the same micelles. ... [Pg.214]

Figure 30 Ordered domain structure for a copolymer based on poly (styrene) and poly (2-cinnamoylethyl methacrylate) blocks with a DP ratio 1,250 158. The hexagonaUy packed dark ovals represent PCEMA cylinders oriented perpendicularly to the micrograph. The TEM micrograph on the right reveals nanofibers of the cylindrical crosslinked component following dissolutions of the continuous matrix. (From Ref. 29. Copyright 1996 Am. Chem. Soc.)... Figure 30 Ordered domain structure for a copolymer based on poly (styrene) and poly (2-cinnamoylethyl methacrylate) blocks with a DP ratio 1,250 158. The hexagonaUy packed dark ovals represent PCEMA cylinders oriented perpendicularly to the micrograph. The TEM micrograph on the right reveals nanofibers of the cylindrical crosslinked component following dissolutions of the continuous matrix. (From Ref. 29. Copyright 1996 Am. Chem. Soc.)...
F. Henselwood, G. Liu, Water-soluble nanospheres of poly(2-cinnamoylethyl methacrylate) - block-poly(acrylic acid). Macromolecules 30 (1997) 488-493. [Pg.46]

Poly(2-cinnamoylethyl methacrylate)-b- Methanol, methylene chloride Isopropanol/hexane (3/7) 630... [Pg.2009]

See other pages where Poly 2-cinnamoylethyl is mentioned: [Pg.150]    [Pg.155]    [Pg.156]    [Pg.138]    [Pg.143]    [Pg.114]    [Pg.146]    [Pg.487]    [Pg.495]    [Pg.28]    [Pg.115]    [Pg.352]    [Pg.777]    [Pg.798]    [Pg.143]    [Pg.1864]   


SEARCH



© 2024 chempedia.info