期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 29, 页码 34973-34983出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c09203
关键词
capsule particle; pH regulation; photo-reaction; stimuli-responsive; polymer particle; interfacial reaction
资金
- JSPS KAKENHI [21H02004]
- KOSE Cosmetology Research Foundation
- Takahashi Industrial and Economic Research Foundation
- Leading Initiative for Excellent Young Researchers, MEXT, Japan
- Grants-in-Aid for Scientific Research [21H02004] Funding Source: KAKEN
pH-responsive capsule polymer particles were prepared by interfacial photo-cross-linking with photo-reactive polymers possessing different pH-responsive monomer units of different alkyl chain lengths. The study showed successful regulation of the controlled release properties of these particles using pH-responsive monomers with different alkyl chain lengths.
pH-responsive capsule particles have immense potential for use in various advanced fields, such as microreactors and drug delivery. Moreover, the interfacial photo-cross-linking of spherical polymer particles is a promising strategy to create various functional capsule particles. In this study, pH-responsive capsule polymer particles were prepared by interfacial photo-cross-linking with photo-reactive polymers possessing different pH-responsive monomer units of different alkyl chain lengths, namely, 2-dimethylaminoethyl methacrylate, 2-diethylaminoethyl methacrylate, and 2-diisopropylaminoethyl methacrylate. Using these different pH-responsive monomers, regulation of the controlled release properties of pH-responsive capsule particles was achieved. All capsule particles prepared from these three different polymers released encapsulated molecules under acidic conditions; however, more acidic conditions were necessary for releasing encapsulated molecules with the increasing allcyl chain length. The afforded results indicated that pH-responsive monomers of different alkyl chain lengths could be successfully employed to regulate the pH-responsive controlled release property of the capsule particles prepared by interfacial photo-cross-linking.
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