An adduct of Cl-substituted benzotriazole and hydroxy benzophenone as a novel UVA/UVB absorber: Theory-guided design, synthesis, and calculations

Pei, Kemei; Cui, Zhihua; Chen, Weiguo

doi:10.1016/j.molstruc.2012.07.050

Cited by 20 publications

(10 citation statements)

References 13 publications

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“…Some organic molecules containing chromophoric groups, such as benzophenone, benzotriazole and cinnamate have, show remarkable UVshielding effect. [9][10][11] Unfortunately, toxicity, instability and the migration in polymer matrix restrict their utilization. On the contrary, inorganic semiconductor materials, especially the metal oxides with a wide bandgap (Eg > 3 eV) such as ZnO, 12 TiO 2 , 13 and CeO 2…”

Section: Introductionmentioning

confidence: 99%

Surface engineering of nanoparticles for highly efficient UV‐shielding composites

Liu

Chen

et al. 2020

Polymers for Advanced Techs

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Overexposure to ultraviolet (UV) with high energy can not only hurt human skin but also accelerate the degradation of organic matter. Hence, the preparation of polymer‐based UV‐shielding nanocomposites has attracted substantial attention due to the low cost, easy processing and wide applications. Notably, the highly efficient UV‐shielding polymer nanocomposites are still hindered by the agglomeration of inorganic anti‐UV nanoparticles (Nps) in polymer matrix and the narrow absorption range of UV‐shielding agents. To overcome the aforementioned bottlenecks, surface engineering of anti‐UV Nps including organic modification and inorganic hybridization has been extensively employed to enhance the UV‐shielding efficiency of composites. Herein, to deliver the readers a comprehensive understanding of the surface engineering of anti‐UV Nps, we systematically summarize the recent advances in surface organic modification and inorganic hybridization related to anti‐UV Nps. The UV‐shielding mechanism and the factors affecting UV‐shielding efficiency of polymer nanocomposites are also discussed. Finally, perspectives on remaining challenges and future development of highly efficient UV‐shielding composites are outlined.

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Section: Introductionmentioning

confidence: 99%

Surface engineering of nanoparticles for highly efficient UV‐shielding composites

Liu

Chen

et al. 2020

Polymers for Advanced Techs

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“…However, traditional UV absorbers have obvious defects due to their low molecular weight. For example, when the processing temperature of polymer is high enough, the UV absorber will be easy to volatilize or degrade . Moreover, UV absorbers will migrate and precipitate from polymer matrix during its service life.…”

Section: Introductionmentioning

confidence: 99%

A novel nanosilica‐supported ultraviolet absorber for the preparation of robust biodegradable plastic film with high ultraviolet aging resistance

et al. 2019

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A novel type of nanosilica-supported ultraviolet absorber (SiO 2 -N-0) was successfully prepared by chemically grafting 2,4-dihydroxybenzophenone (UV-0) onto the surface of nanosilica (SiO 2 ) with the aid of a coupling agent via a solgel method, which was confirmed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. SiO 2 -N-0 was then incorporated into poly(butylene adipate-co-terephthalate) (PBAT) to fabricate biodegradable composite film with a casting method. As expected, SiO 2 -N-0 was homogeneously dispersed in PBAT matrix, leading to higher mechanical strength and lower water vapor transmission of PBAT/SiO 2 -N-0 film than those of PBAT/SiO 2 /UV-0 film. More importantly, because of its low migration and volatility, SiO 2 -N-0 endowed PBAT film with excellent aging resistance under ultraviolet radiation than did the corresponding low molecular ultraviolet absorber UV-0. Taken together, these results suggest that thus prepared PBAT/SiO 2 -N-0 composite film may find many applications, especially as biodegradable agricultural mulch film.

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“…The UV absorption efficiency and range can be predicted by theoretical calculations, and it is possible to design a UV absorber with better abortion ability and range. One class of commercially available UV absorbers contains hydroxybenzophenone (HBP) . It has also been reported that both Tinuvin‐PS and HBP dissipate light energy through the ESIPT mechanism.…”

Section: Introductionmentioning

confidence: 99%

A Highly Efficient UV‐C Absorber Based on Theoretical and Experimental Studies

Chen

Shih

Lin

et al. 2017

J Chinese Chemical Soc

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Based on two published UV absorbing molecules 2-(5 0 -tert-butyl-2 0 -hydroxyl)benzotriazole (Tinuvin-PS) and hydroxybenzophenone (HBP), both having characteristic absorption capability, a refined UV absorber, 2-(3 0 -benzoyl-2 0 -hydroxy-5 0 -tert-butylphenyl)benzotriazole, has been synthesized. This new UV absorber exhibits a wider absorption range and better thermal stability compared to either Tinuvin-PS and HBP and a higher absorption efficiency in the UV-C range. Theoretical studies reveal that the UV-C absorption arises from the electron density transfer from the Tinuvin-PS moiety to the HBP moiety and the enhanced absorption efficiency is ascribed to the presence of the carbonyl's π system.

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An adduct of Cl-substituted benzotriazole and hydroxy benzophenone as a novel UVA/UVB absorber: Theory-guided design, synthesis, and calculations

Cited by 20 publications

References 13 publications

Surface engineering of nanoparticles for highly efficient UV‐shielding composites

Surface engineering of nanoparticles for highly efficient UV‐shielding composites

A novel nanosilica‐supported ultraviolet absorber for the preparation of robust biodegradable plastic film with high ultraviolet aging resistance

A Highly Efficient UV‐C Absorber Based on Theoretical and Experimental Studies

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