A Spike-like Self-Assembly of Polyaspartamide Integrated with Functionalized Nanoparticlesopen access
- Authors
- Han, Sa Ra; Ahn, Yujin; Cho, Sungwoo; Jeong, Hyewon; Ji, Yoonsook; Jung, Woonggyu; Jeong, Jae Hyun
- Issue Date
- Jan-2024
- Publisher
- MDPI
- Keywords
- spike-like self-assembly; polyaspartamide; UV blocking; functional nanoparticles
- Citation
- POLYMERS, v.16, no.2
- Journal Title
- POLYMERS
- Volume
- 16
- Number
- 2
- URI
- https://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/49185
- DOI
- 10.3390/polym16020234
- ISSN
- 2073-4360
2073-4360
- Abstract
- The integration of nanoparticles (NPs) into molecular self-assemblies has been extensively studied with the aim of building well-defined, ordered structures which exhibit advanced properties and performances. This study demonstrates a novel strategy for the preparation of a spike-like self-assembly designed to enhance UV blocking. Poly(2-hydroxyethyl aspartamide) (PHEA) substituted with octadecyl chains and menthyl anthranilate (C18-M-PHEA) was successfully synthesized by varying the number of grafted groups to control their morphology and UV absorption. The in situ incorporation of polymerized rod-like TiO2 within the C18-M-PHEA self-aggregates generated spike-like self-assemblies (TiO2@C18-M-PHEA) with a chestnut burr structure in aqueous solution. The results showed that the spike-like self-assemblies integrated with TiO2 NPs exhibited a nine-fold increase in UV protection by simultaneous UV absorption and scattering compared with the pure TiO2 NPs formed via a bulk mixing process. This work provides a novel method for UV protection using self-assembling poly(amino acid)s derivatives integrated with functional nanoparticles to tune their morphology and organization.
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