Photoinduced Electron Transfer at the Core/Shell Interface of Polystyrene−Anthracene−Poly(methacrylic acid) Diblock Copolymer Micelles in Aqueous Media

1997 ◽  
Vol 101 (9) ◽  
pp. 1646-1656 ◽  
Author(s):  
A. R. Eckert ◽  
T. J. Martin ◽  
S. E. Webber
Fibers ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 71
Author(s):  
Panagiotis Goulis ◽  
Ioannis A. Kartsonakis ◽  
Costas A. Charitidis

The aim of this study is to synthesize an organic core-shell co-polymer with a different glass transition temperature (Tg) between the core and the shell that can be used for several applications such as the selective debonding of coatings or the release of encapsulated materials. The co-polymer was synthesized using free radical polymerization and was characterized with respect to its morphology, composition and thermal behavior. The obtained results confirmed the successful synthesis of the co-polymer copolymer poly(methyl methacrylate)@poly(methacrylic acid-co-ethylene glycol dimethacrylate), PMMA@P(MAA-co-EGDMA), which can be used along with water-based solvents. Furthermore, the Tg of the polymer’s core PMMA was 104 °C, while the Tg of the shell P(MAA-co-EGDMA) was 228 °C, making it appropriate for a wide variety of applications. It is worth mentioning that by following this specific experimental procedure, methacrylic acid was copolymerized in water, as the shell of the copolymer, without forming a gel-like structure (hydrogel), as happens when a monomer is polymerized in aqueous media, such as in the case of super-absorbent polymers. Moreover, the addition and subsequent polymerization of the monomer methyl methacrylate (MAA) into the mixture of the already polymerized PMMA resulted in a material that was uniform in size, without any agglomerations or sediments.


The Analyst ◽  
2019 ◽  
Vol 144 (4) ◽  
pp. 1260-1264 ◽  
Author(s):  
Yannan Li ◽  
Li Yang ◽  
Mengqi Du ◽  
Guanjun Chang

A novel fluorescent probe for Pd2+ based on the BODIPY fluorophore exploiting the PET (Photoinduced Electron Transfer) mechanism was designed and successfully synthesized.


The Analyst ◽  
2014 ◽  
Vol 139 (12) ◽  
pp. 2986-2989 ◽  
Author(s):  
Jiyoung Kim ◽  
Youngmi Kim

A water-soluble sulfonate-BODIPY dye1was developed for the selective detection of HOCl/OCl−in aqueous buffer solution. The probe, which displays extremely weak fluorescence owing to efficient photoinduced electron transfer (PeT) from the pendant catechol donor, responds to HOCl/OCl−through a dramatic enhancement of its fluorescence intensity.


2009 ◽  
Vol 33 (11) ◽  
pp. 2261 ◽  
Author(s):  
Atula S. D. Sandanayaka ◽  
Osamu Ito ◽  
Takatsugu Tanaka ◽  
Hiroyuki Isobe ◽  
Eiichi Nakamura ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (122) ◽  
pp. 100697-100701 ◽  
Author(s):  
Sharad R. Bobe ◽  
Rajesh S. Bhosale ◽  
Santosh P. Goskulwad ◽  
Avinash L. Puyad ◽  
Sheshanath V. Bhosale ◽  
...  

This study presents the core-substituted naphthalenediimide based probe 1 for the selective detection of cysteine via photoinduced electron transfer (PET) effect.


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