The β CD was first successfully introduced into the pore of MCM 41 mesoporous sieve, with γ glycidoxypr opyltrimethoxy silane (GPTS) as a coupling agent. An inorganic/organic complex mesoporous material β CD MCM 41...The β CD was first successfully introduced into the pore of MCM 41 mesoporous sieve, with γ glycidoxypr opyltrimethoxy silane (GPTS) as a coupling agent. An inorganic/organic complex mesoporous material β CD MCM 41 was synthesized, and characterized by XRD, nitrogen adsorption desorption, elemental analysis, FT IR and spectrophotofluorimetry. The results show that β CD molecular not only get into the modified inner wall, but also remain the ordered mesoporou structure of MCM 41.展开更多
A poly(N-isopropylacrylamide)/β-Cyclodextr in (PNIPAM/β-CD) ionic polymer was synthesized by the reaction of poly( N-isopropylacrylamide-co-acryl acid) (poly(NIPAM-co-AA) with mo no-6-ethanolamine-β-cyclodextrin (E...A poly(N-isopropylacrylamide)/β-Cyclodextr in (PNIPAM/β-CD) ionic polymer was synthesized by the reaction of poly( N-isopropylacrylamide-co-acryl acid) (poly(NIPAM-co-AA) with mo no-6-ethanolamine-β-cyclodextrin (EAA-β-CD).EAA-β-CD was synthesized via the reaction of mono-6-OTs-β-CD(Ts= p-toluensulfo nyl) with E.The ionic polymer was characterized by means of FT-IR and UV-V isi ble spectroscopes,and DSC.The result shows that the formation of ionic interacti on between poly(NIPAM-co-) and E-β-CD leads to an increase of t he glass transition temperature (T g) of poly(NIPAM-co-).In additio n,not only the ionic polymer exhibits a well-defined lower critical solution te mperature (LCST),but also β-CD on the polymer backbone can be modulated by changing the pH values,as compared with β-CD-conjugated polymers with co valent bonds.Also,β-CD can easily be bound to the polymer backbone in form of free,or inclusion complex.It is expected that the polymer may find some usef ul applications such as drug delivery system.展开更多
文摘The β CD was first successfully introduced into the pore of MCM 41 mesoporous sieve, with γ glycidoxypr opyltrimethoxy silane (GPTS) as a coupling agent. An inorganic/organic complex mesoporous material β CD MCM 41 was synthesized, and characterized by XRD, nitrogen adsorption desorption, elemental analysis, FT IR and spectrophotofluorimetry. The results show that β CD molecular not only get into the modified inner wall, but also remain the ordered mesoporou structure of MCM 41.
文摘A poly(N-isopropylacrylamide)/β-Cyclodextr in (PNIPAM/β-CD) ionic polymer was synthesized by the reaction of poly( N-isopropylacrylamide-co-acryl acid) (poly(NIPAM-co-AA) with mo no-6-ethanolamine-β-cyclodextrin (EAA-β-CD).EAA-β-CD was synthesized via the reaction of mono-6-OTs-β-CD(Ts= p-toluensulfo nyl) with E.The ionic polymer was characterized by means of FT-IR and UV-V isi ble spectroscopes,and DSC.The result shows that the formation of ionic interacti on between poly(NIPAM-co-) and E-β-CD leads to an increase of t he glass transition temperature (T g) of poly(NIPAM-co-).In additio n,not only the ionic polymer exhibits a well-defined lower critical solution te mperature (LCST),but also β-CD on the polymer backbone can be modulated by changing the pH values,as compared with β-CD-conjugated polymers with co valent bonds.Also,β-CD can easily be bound to the polymer backbone in form of free,or inclusion complex.It is expected that the polymer may find some usef ul applications such as drug delivery system.
