摘要:
A process for the manufacture of a polyimide hollow fibre comprising: (i) providing a dope solution comprising one or more polyimides dissolved in a solvent comprising 60-100 wt % N-methylpyrollidone and 0-40 wt % ethanol, (ii) providing a bore fluid, (iii)generating a tube of the dope solution filled with the bore fluid, (iv) bringing the product of step (iii) into contact with a coagulation solvent to form a hollow fibre.
摘要:
A process for the manufacture of a polyimide hollow fibre comprising: (i) providing a dope solution comprising one or more polyimides dissolved in a solvent comprising 60-100 wt % N-methylpyrollidone and 0-40 wt % ethanol, (ii) providing a bore fluid, (iii) generating a tube of the dope solution filled with the bore fluid, (iv) bringing the product of step (iii) into contact with a coagulation solvent to form a hollow fiber.
摘要:
A process is provided for chemically modifying a dual-layer hollow fibre, wherein the fibre comprises a first layer consisting essentially of a polyimide and a second layer consisting essentially of a polymer which is substantially unaffected by the chemical modification process. The process comprises contacting the polyimide layer with a polyamine. In addition, a process is provided for chemically modifying a polyimide membrane in general, using a process which comprises contacting the membrane with an alcoholic solution of an aliphatic-aromatic polyamine.
摘要:
A manganese-doped magnesium stannate luminescent material, which has a molecular formula of: Mg2-xSnO4:Mnx@SnO2@My, where @ is a coating, where Mg2-xSnO4:Mnx is an outer shell layer, where SnO2 is an intermediate layer shell, where M is an inner core, where M is a metal nanoparticle, where M is at least one selected among Ag, Au, Pt, Pd, and Cu, where the value of x is 0
摘要:
A titanate luminescent material has a formula of A1-xTiO3:Prx@TiO2@My; wherein A is at least one selected from the group consisting of Ca, Sr, and Ba; M is at least one nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0
摘要:
Metal nano particles doped with silicate luminescent materials and preparation methods thereof are provided. The luminescent materials are represented by the general formula: (Sr1-x-yAxEuy)3SiO5:Dz@Mn, wherein A is one or two selected from alkaline-earth metal elements, D is F or Cl, @ is for coating, M is one or two selected from Ag, Au, Pt, Pd or Cu metal nano particles, 0≦x≦0.5, 0.001
摘要:
A zinc aluminate luminescent material is provided having the general molecular formula of Zn1-xAl2O4:A3+x@Al2O3@My, wherein A is selected from the group consisting of Cr, Eu, Tb, and Ce; M is selected from at least one of Ag, Au, Pt, Pd and Cu metal nanoparticles; 0
摘要翻译:提供具有通式为Zn1-xAl2O4:A3 + x @ Al2O3 @ My的铝酸锌发光材料,其中A选自Cr,Eu,Tb和Ce; M选自Ag,Au,Pt,Pd和Cu金属纳米颗粒中的至少一种; 0
摘要:
The present invention provides a stannate fluorescent material having a formula: A2-xSnO4:Eux@SnO2@My; wherein A is selected from the group consisting of Ca, Sr, and Ba; M is at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0
摘要:
A manganese-doped magnesium stannate luminescent material, which has a molecular formula of: Mg2-xSnO4:Mnx@SnO2@My, where @ is a coating, where Mg2-xSnO4:Mnx is an outer shell layer, where SnO2 is an intermediate layer shell, where M is an inner core, where M is a metal nanoparticle, where M is at least one selected among Ag, Au, Pt, Pd, and Cu, where the value of x is 0
摘要:
The invention relates to a method for making a polymer wherein during the polymerisation is incorporated in the polymer chain by ring opening polymerisation a cyclic (alkyl)acryloyl carbonate having the formula (4): wherein R1 and R2 each independently are hydrogen, methyl or ethyl. Preferable the polymer is an (alkyl)acryloyl polycarbonate such that at least one first monomer a cyclic (alkyl)acryloyl carbonate having the formula (4). The (alkyl)acryloyl polyester may be modified and used in biodevices.