random copolymerization

英

美

网络无规共聚

Design of extrusion equipment for random copolymerization PP pipes
无规共聚聚丙烯管材挤出设备的设计
Random copolymers of N-vinyl pyrrolidone ( NVP), 2-dimethylaminoethyl methacrylate ( DMAEMA), Poly ( NVP-co-DMAEMA) and their hydrogels were prepared by radical copolymerization.
以N-乙烯基吡咯烷酮（NVP）和甲基丙烯酸-N，N-二甲胺乙酯（DMAEMA）为单体，采用自由基聚合法合成了NVP与DMAEMA的共聚物及其水凝胶。
The mechanism of random copolymerization commonly accords with the homopolymerization mechanism of monomers; therefore, the copolymerization mechanism of POSS and cyclosiloxanes under basic catalysts is the same as the homopolymerization of cyclosiloxanes.
无规共聚机理一般与单体均聚机理相同，因此得出POSS与环硅氧烷在碱性催化剂作用下的共聚机理和环硅氧烷均聚机理相同，均属阴离子开环聚合机理。
IR and DSC results indicate that random copolymers are formed by microemulsion copolymerization and the value of glass transition temperature of the copolymers increase with the increase of the weight ratio of acrylonitrile in the feed. 2.
通过IR和DSC分析表明聚合物为无规共聚物，共聚物的玻璃化温度随着体系中丙烯腈含量的增加而增大。