Systematic Design and Synthesis of Methacrylate- and Trimethoxysilane-Functionalized POSS and DDSQ Nanostructures
- 1R & D Center, Unis Co., Ltd., 1394, Nakdong-daero, Pusan 46907, Republic of Korea
- 2Department of Chemistry, Changwon National University, Changwon 51140, Republic of Korea
Abstract
Polyhedral oligomeric silsesquioxane (POSS) and double-decker silsesquioxane (DDSQ) are organic–inorganic hybrid nanostructures with well-defined siloxane frameworks that can be functionalized with various organic groups. In this study, a systematic series of six functional silsesquioxane derivatives was prepared using three different molecular architectures, POSS-8, DDSQ-4, and DDSQ-2. Three methacrylate-functionalized derivatives and three trimethoxysilane-functionalized derivatives were prepared from the corresponding Si–H-containing POSS and DDSQ precursors through hydrosilylation reactions. The target compounds were obtained in good yields of 81–91%, and their molecular structures were characterized by FT-IR, 1H and 13C NMR, 29Si NMR, and MALDI-TOF mass spectrometry. The spectroscopic results confirmed the successful introduction of the methacrylate and trimethoxysilane groups while maintaining the characteristic silsesquioxane frameworks. The parallel functionalization of POSS-8, DDSQ-4, and DDSQ-2 established a systematic series of silsesquioxane molecular precursors differing in framework architecture and peripheral functional-group density. The resulting derivatives contain either methacrylate or trimethoxysilane functionalities; however, their subsequent polymerization, hydrolysis/condensation, and material performance were not evaluated in the present study. Accordingly, these compounds are regarded as potential molecular precursors for further investigation.
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BibTeX
@article{moon2026systematic,
title = {{Systematic Design and Synthesis of Methacrylate- and Trimethoxysilane-Functionalized POSS and DDSQ Nanostructures}},
author = {Bu-Hyun Moon and Eo Jin Oh and Hea Jung Park and Dong-Soo Shin},
journal = {Nanomaterials},
year = {2026},
month = oct,
doi = {10.3390/nano16211343},
url = {https://www.mdpi.com/2079-4991/16/21/1343},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Systematic Design and Synthesis of Methacrylate- and Trimethoxysilane-Functionalized POSS and DDSQ Nanostructures
AU - Bu-Hyun Moon
AU - Eo Jin Oh
AU - Hea Jung Park
AU - Dong-Soo Shin
PY - 2026
DA - 2026/10/23
JO - Nanomaterials
DO - 10.3390/nano16211343
UR - https://www.mdpi.com/2079-4991/16/21/1343
AB - Polyhedral oligomeric silsesquioxane (POSS) and double-decker silsesquioxane (DDSQ) are organic–inorganic hybrid nanostructures with well-defined siloxane frameworks that can be functionalized with various organic groups. In this study, a systematic series of six functional silsesquioxane derivatives was prepared using three different molecular architectures, POSS-8, DDSQ-4, and DDSQ-2. Three methacrylate-functionalized derivatives and three trimethoxysilane-functionalized derivatives were prepared from the corresponding Si–H-containing POSS and DDSQ precursors through hydrosilylation reactions. The target compounds were obtained in good yields of 81–91%, and their molecular structures were characterized by FT-IR, 1H and 13C NMR, 29Si NMR, and MALDI-TOF mass spectrometry. The spectroscopic results confirmed the successful introduction of the methacrylate and trimethoxysilane groups while maintaining the characteristic silsesquioxane frameworks. The parallel functionalization of POSS-8, DDSQ-4, and DDSQ-2 established a systematic series of silsesquioxane molecular precursors differing in framework architecture and peripheral functional-group density. The resulting derivatives contain either methacrylate or trimethoxysilane functionalities; however, their subsequent polymerization, hydrolysis/condensation, and material performance were not evaluated in the present study. Accordingly, these compounds are regarded as potential molecular precursors for further investigation.
SN - 2079-4991
ER -