公开(公告)号：US09533297B2

公开(公告)日：2017-01-03

申请号：US14379418

申请日：2013-02-22

Applicant: Carnegie Mellon University

Inventor： Krzysztof Matyjaszewski ,  Yungwan Kwak ,  Joanna Burdynska ,  Andrea Elsen ,  Kristin Schroeder

IPC: C08F4/40 ,  C08F4/44 ,  C08F4/80 ,  B01J31/22 ,  C08F120/18 ,  C08F2/38 ,  C08F4/10 ,  C08F4/26 ,  B01J31/18 ,  C08F220/18

CPC classification number: B01J31/2295 ,  B01J31/1815 ,  B01J31/2243 ,  B01J2231/10 ,  B01J2231/30 ,  B01J2231/42 ,  B01J2531/0247 ,  B01J2531/16 ,  B01J2531/842 ,  C08F2/38 ,  C08F4/10 ,  C08F4/26 ,  C08F4/40 ,  C08F120/18 ,  C08F2220/1825 ,  C08F2438/01 ,  Y02P20/52

Abstract: A series of ligands with site specific electron donating substituents that form a catalyst complex with a transition metal and are suitable for catalysis of atom transfer radical reactions, including ATRP are described. Faster catalysis rates were observed allowing for low catalyst concentrations and linear increases in molecular weight with monomer conversion, and narrow molecular weight distributions. Cyclic voltammetry revealed that increasing the strength and number of conjugated electron donating groups resulted in more stable complexes and larger ATRP equilibrium constants.

Abstract translation: 描述了一系列具有与过渡金属形成催化剂络合物并且适于催化原子转移自由基反应（包括ATRP）的位置特异性给电子取代基的配位体。 观察到更快的催化速率，使得催化剂浓度低，分子量随单体转化率的线性增加，分子量分布窄。 循环伏安法显示，增加共轭给电子基团的强度和数量导致更稳定的络合物和较大的ATRP平衡常数。

公开(公告)号：US20150087795A1

公开(公告)日：2015-03-26

申请号：US14379418

申请日：2013-02-22

Applicant: Carnegie Mellon University

Inventor： Krzysztof Matyjaszewski ,  Yungwan Kwak ,  Joanna Burdynska ,  Andrea Elsen ,  Kristin Schroeder

IPC: B01J31/22 ,  C08F120/18

CPC classification number: B01J31/2295 ,  B01J31/1815 ,  B01J31/2243 ,  B01J2231/10 ,  B01J2231/30 ,  B01J2231/42 ,  B01J2531/0247 ,  B01J2531/16 ,  B01J2531/842 ,  C08F2/38 ,  C08F4/10 ,  C08F4/26 ,  C08F4/40 ,  C08F120/18 ,  C08F2220/1825 ,  C08F2438/01 ,  Y02P20/52

Abstract: A series of ligands with site specific electron donating substituents that form a catalyst complex with a transition metal and are suitable for catalysis of atom transfer radical reactions, including ATRP are described. Faster catalysis rates were observed allowing for low catalyst concentrations and linear increases in molecular weight with monomer conversion, and narrow molecular weight distributions. Cyclic voltammetry revealed that increasing the strength and number of conjugated electron donating groups resulted in more stable complexes and larger ATRP equilibrium constants.

Abstract translation: 描述了一系列具有与过渡金属形成催化剂络合物并且适于催化原子转移自由基反应（包括ATRP）的位置特异性给电子取代基的配位体。 观察到更快的催化速率，使得催化剂浓度低，分子量随单体转化率的线性增加，分子量分布窄。 循环伏安法显示，增加共轭给电子基团的强度和数量导致更稳定的络合物和较大的ATRP平衡常数。