Preparation of polyamide 6/silica nanocomposites from silica surface initiated ring-opening anionic polymerization
نویسندگان
چکیده
منابع مشابه
Preparation of polyamide 6/silica nanocomposites from silica surface initiated ring-opening anionic polymerization
Polyamide 6/silica nanocomposites were synthesized by in situ ring-opening anionic polymerization of ε-caprolactam in the presence of sodium caprolactamate as a catalyst and caprolactam-functionalized silica as an initiator. The initiator precursor, isocyanate-functionalized silica, was prepared by directly reacting commercial silica with excess toluene 2,4-diisocyanate. This polymerization was...
متن کاملSurface-initiated, ring-opening polymerization of p-dioxanone from gold and silicon oxide surfaces
Kuk Ro Yoon, Young Shik Chi, Kyung-Bok Lee, Jungkyu K. Lee, Dong Jin Kim, Young-Joo Koh, Sang-Woo Joo, Wan Soo Yun and Insung S. Choi* Department of Chemistry and School of Molecular Science (BK21), Center for Molecular Design and Synthesis, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea. E-mail: [email protected]; Fax: 182-42-869-2810; Tel: 182-42-869-2840 ...
متن کاملAmplification of surface-initiated ring-opening metathesis polymerization of 5-(perfluoro-n-alkyl)norbornenes by macroinitiation.
This article reports the enhanced rate of the surface-initiated polymerization (SIP) of 5-(perfluoro-n-alkyl)norbornenes (NBFn) by combining two SIP techniques, namely surface-initiated atom-transfer polymerization (SI-ATRP) to grow a macroinitiator and surface-initiated ring-opening metathesis polymerization (SI-ROMP) to produce the final coating. This polymerization approach promotes the rapi...
متن کاملSurface-initiated ring-opening metathesis polymerization of 5-(perfluorohexyl)norbornene on carbon paper electrodes.
Hydrophobic coatings on carbon paper electrodes are known to provide effective water management, superior gas transfer, and improved mechanical stability of the paper in fuel cell applications. Here, we describe the surface-initiated ring-opening metathesis polymerization (ROMP) of 5-(perfluorohexyl)norbornene (NBF6) to prepare fluorocarbon-rich films on carbon paper substrates that were pre-tr...
متن کاملHigh-density liquid-crystalline azobenzene polymer brush attained by surface-initiated ring-opening metathesis polymerization.
High-density polynorbornene azobenzene liquid-crystalline brushes are synthesized on quartz substrates by surface-initiated ring-opening metathesis polymerization (SI-ROMP) using Grubbs third-generation catalyst. The grafting process is controlled over the thickness of the brush from a solid-supported substrate in a stoichiometric manner. A highly ordered liquid-crystal arrangement was formed f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Express Polymer Letters
سال: 2007
ISSN: 1788-618X
DOI: 10.3144/expresspolymlett.2007.61