NDLI: Transformations and enhanced long-range ordering of mesoporous phenolic resin templated by poly(ethylene oxide-b-ε-caprolactone) block copolymers blended with star poly(ethylene oxide)-functionalized silsesquioxane (POSS)

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Transformations and enhanced long-range ordering of mesoporous phenolic resin templated by poly(ethylene oxide-b-ε-caprolactone) block copolymers blended with star poly(ethylene oxide)-functionalized silsesquioxane (POSS)

Content Provider	Semantic Scholar
Author	Li, Jheng-Guang Chung, Cheng-Yu Kuo, Shiao-Wei
Copyright Year	2012
Abstract	In this study, we prepared ordered mesoporous phenolic resins templated by poly(ethylene oxide)-b-(e-caprolactone) (PEO-b-PCL) diblock copolymers blended with a star PEO octa-functionalized polyhedral oligomeric silsesquioxane (PEO-POSS) homopolymer. Increasing the PEO-POSS content, and thereby increasing the PEO-to-PCL ratio in the template film, allowed us to tune and enhance the long-range order of the mesoporous phenolic resin. The increased pore size and the more ordered structure were accompanied by a narrower pore size distribution. In addition, we observed an ordered-to-ordered mesophase transition, from a bicontinuous gyroid to a hexagonally packed cylinder structure, upon blending with the star PEO-POSS homopolymer. We anticipate that this approach could be extended to the preparation of other large-pore, long-range-ordered mesoporous materials, such as silica and other metal oxides.
Starting Page	18583
Ending Page	18595
Page Count	13
File Format	PDF HTM / HTML
DOI	10.1039/C2JM33614F
Volume Number	22
Alternate Webpage(s)	http://www.rsc.org/suppdata/jm/c2/c2jm33614f/c2jm33614f.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C2JM33614F
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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