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- Title
Porous Polymers Derived from Octavinylsilsesquioxane by Cationic Polymerization.
- Authors
Du, Yajing; Ge, Mingtao; Liu, Hongzhi
- Abstract
A new rapid and efficient approach is developed for the preparation of porous materials via cationic polymerization of octavinylsilsesquioxane (OVS). The reaction proceeds rapidly and efficiently at room temperature, forming a predominantly covalent porous network polymer. A series of experiments are conducted to clarify the effects of reaction time, temperature, and solvent on the polymerization process. The results show that all the products possess a nanoporous structure with surface areas of approximately 300 – 620 m2 g−1 and a pore volume of 0.15 – 0.54 cm3 g−1. The porosity of these polymers can be readily tailored by changing the reaction conditions. The post functionalization of the materials is further investigated by epoxidation and the application of these polymers as carbon dioxide adsorbents (up to 0.98 mmol g−1) is also explored. The work has general implications in understanding the reactive nature of the cationic polymerization of OVS and is very promising for promoting the application of porous materials. A new rapid and efficient approach is developed for the preparation of porous materials via the cationic polymerization of octavinylsilsesquioxane. A series of experiments are conducted to clarify the effects of reaction time, temperature, and solvent on the polymerization process. The porosity of these polymers can be readily tailored by changing reaction conditions.
- Subjects
POROUS polymers; SILICONES; ADDITION polymerization; TEMPERATURE effect; CRYSTAL structure
- Publication
Macromolecular Chemistry & Physics, 2019, Vol 220, Issue 5, pN.PAG
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201800536