4-Methyl-3-morpholinecarboxylic acid hydrochloride (1:1)
CAS Number:
1240518-90-4
Molecular Formula:
C6H12ClNO3
Synthesis of photoresponsive polymeric propesticide micelles based on PEG for the controlled release of a herbicide
Literature Information
Publication Date
2015-12-03
DOI
10.1039/C5PY01690H
Impact Factor
5.582
Authors
Kaikai Ding, Liyan Shi, Ling Zhang, Tian Zeng, Yihua Yin, Ying Yi
View Original
Abstract
A novel amphiphilic polymer–pesticide conjugate was synthesized by conjugation of PEG with the photolabile o-nitrobenzyl group followed by grafting dichlorophenoxyacetic acid (2,4-D), which can self-assemble into photoresponsive micelles in aqueous solutions for a controlled release of the herbicide. 1H NMR and FT-IR confirmed the structure of the synthesized conjugate. TEM observations showed that the micelles had a core–shell configuration. DLS and TEM measurements showed that the average diameters of the micelles decreased by about 40 nm after 365 nm UV irradiation. 1H NMR and UV-Vis studies confirmed that the photoresponse may be ascribed to the photolytic cleavage of o-nitrobenzyl as the connecting arm in the polymeric chain. No release of the micelles was detected without light, while the cumulative release rate from the micelles increased gradually upon solar-simulating radiation, reaching 99.6% in 8 h.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
457
Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.
Recommended Compounds
1,3(2H,4H)-Isoquinolinedione, 7-amino-4,4-dimethyl-
CAS Number:
14576-22-8
Molecular Formula:
C11H12N2O2
![S-[2,3-Bis(palmitoyloxy)propyl]-N-[(9H-fluoren-9-ylmethoxy)(hydroxy)methylene]cysteine structure](https://static.chemtradehub.com/structs/210/210532-98-2-f6a7.webp "S-[2,3-Bis(palmitoyloxy)propyl]-N-[(9H-fluoren-9-ylmethoxy)(hydroxy)methylene]cysteine structure")
S-[2,3-Bis(palmitoyloxy)propyl]-N-[(9H-fluoren-9-ylmethoxy)(hydroxy)methylene]cysteine
CAS Number:
210532-98-2
Molecular Formula:
C53H83NO8S
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