公开(公告)号：US07199200B2

公开(公告)日：2007-04-03

申请号：US10515937

申请日：2003-08-01

Applicant: Ingrisch Stefan ,  Maier Alois ,  Pfeuffer Thomas ,  Steidl Norbert

Inventor： Ingrisch Stefan ,  Maier Alois ,  Pfeuffer Thomas ,  Steidl Norbert

IPC: C08F118/02 ,  C08F2/00 ,  C08F20/06 ,  C08F212/06

CPC classification number: C08F2/38 ,  C08F2/10

Abstract: A process is described for producing homo-, co- and block copolymers by controlled radical polymerization in aqueous solution, wherein a monomer component (A) consisting of at least one radically polymerizable monomer, an initiator component (B) consisting of at least one radical initiator, a polysaccharide component (C) consisting of at least one cyclic polysaccharide (derivative) and a regulator component (D) consisting of at least one compound of the general formula (Ia) or/and (Ib) are reacted in the presence of water, in which R1 to R6 can each independently denote hydrogen, an optionally substituted C1–C20 alkyl residue, C3–C8 cycloalkyl residue, C7–C34 aralkyl residue or optionally an aromatic C6–C14 hydrocarbon residue and R2 and R5 can additionally denote polymer residues having an average molecular mass (number average) of 100 to 50,000 Daltons, and at least two but at most four of the residues R1 to R6 represent an aromatic hydrocarbon residue. In this manner it is possible to produce polymers with a very narrow molecular weight distribution. Moreover, due to the much lower amounts of initiator and regulator compared to the prior art, the polymers contain only very small amounts of regulator and initiator decomposition products.

Abstract translation: 描述了通过在水溶液中控制自由基聚合制备均聚物，共聚物和嵌段共聚物的方法，其中由至少一种可自由基聚合的单体，由至少一个基团组成的引发剂组分（B）组成的单体组分（A） 引发剂，由至少一种环状多糖（衍生物）组成的多糖组分（C）和由至少一种通式（Ia）或/和（Ib）化合物组成的调节剂组分（D）在存在下反应 水，