摘要:
Described herein is a composition comprising a fluorinated polysulfinic acid or a salt thereof having the following formula (I): wherein X1, X2, and X3 are independently selected from H, F, Cl, Br, I, CF3, and CH3 and wherein at least one of X1, X2, or X3 is H; R1 is a linking group; Z1 and Z2 are independently selected from Br, Cl, I, F, CF3, and a perfluorinated alkyl group; M is a cation; p is 0 or 1; and n is at least 2. Also described is a method of making the partially fluorinated polysulfinic acid or salt thereof.
摘要:
The present invention relates to partly conjugated spirobifluorene polymers which are linked in the polymer via both spiro molecule halves. The materials according to the invention display a purer emission colour and a longer life than materials according to the prior art and are therefore better suited for use in polymeric organic light-emitting diodes.
摘要:
The present invention provides a method for producing a polymer by conducting polymerization in a polymerization reactor having an inner wall covered with an anti-fouling agent comprising an aqueous solution containing a polyvinyl alcohol obtained through saponification of a polyvinyl ester that contains monomer units having a silyl group. In the present invention, the polyvinyl alcohol satisfies the following formulae (I) and (II): 370
摘要:
A process for the solventless polymerization of brominated styrenes includes blending monomers of brominated styrenes with a polymerization initiator, feeding the monomer/polymerization initiator mix into a prepolymerizer wherein the monomers begin to polymerize, and feeding the monomer/polymerization initiator mix and the partially polymerized bromostyrene into a screw-type extruder to drive the polymerization to a high degree of completion in a short period of time. Optionally, the monomers may be preheated before mixing with the initiator, or a heater may be included in the prepolymerizer.
摘要:
Poly(amine allyl halides) copolymer may be produced by mixing an amine compound and a mono-olefinic allyl type monohalide compound in the presence of an oxidized silicon catalyst.
摘要:
Described herein is a method of making a fluoropolymer and fluoropolymers thereof, wherein the method comprises: (a) providing an aqueous solution comprising a water soluble polyiodide salt of Formula (I): M+y[I—I—(I)n]y− wherein M is a cation group having a valence y, y is an integer of at least 1 and n is an integer of at least 1; and (b) initiating polymerization of a monomer in the aqueous solution, wherein the monomer is a fluorinated monomer.
摘要翻译:本文描述了制备氟聚合物及其含氟聚合物的方法,其中所述方法包括:(a)提供包含式(I)的水溶性多碘化物盐:M + y [I-I-(I)n] y-其中M是具有价y的阳离子基团,y是至少为1的整数,n是至少为1的整数; 和(b)引发单体在水溶液中的聚合,其中单体是氟化单体。