SYNTHESIS OF POLY(PAMAM-g-DAC) AND ITS APPLICATION IN DCS CONTROLLING OF RECYCLED PULP

摘要：

A novel cationic dendritic polymer was synthesized through atom transfer radical polymerization (ATRP). Firstly, the ester-terminated half-generation polyamidoamine dendrimer (G0.5 PAMAM) was amidated using tris (tri-hydroxymethylaminomethane) to obtain hydroxy-terminated dendrimer PAMAM-OH which was subsequently acylated to produce macroinitiator PAMAM-Br using 2-bromoisobutyryl bromide. Then, a range of poly(PAMAM-g-DAC) was prepared by ATRP using PAMAM-Br, DAC, CuBr, 2,2-bipyridine as dendritic macroinitiator, cationic monomer, catalyst and ligand, respectively. Poly(PAMAM-g-DAC) was used to minimize the negative effects of DCS in papermaking. The results showed that poly(PAMAM-g-DAC) with high charge density can obviously reduce the turbidity and cationic demand of DCS. It was also found that adding poly(PAMAM- g-DAC) into recycled pulp before CPAM could eliminate the negative effects of DCS and improve the effectiveness of CPAM.

关键词： dendritic macroinitiator atom transfer radical polymerization (ATRP) DCS control poly(PAMAM-g-DAC) retention and drainage

作者: Yang Qian Fu Yingjuan Qin Menghua Yue Jie Zhang Fengshan Li Jianhua

作者单位: Shandong Institute of Light Industry, Jinan, 250353,China Shandong Institute of Light Industry, Jinan, 250353,China Huatai Group Corp. Ltd., Dongying, 257335, Huatai Group Corp. Ltd., Dongying, 257335, China

会议类型: 国际会议

会议名称: 4th ISETPP(第四届制浆造纸新技术国际研讨会)

会议地点: 广州

会议语种:英文

页码: 1008-1011

在线出版日期: 2010-11-08（万方平台首次上网日期，不代表论文的发表时间）