摘要
采用凝胶渗透色谱法测定了聚羧酸盐分散剂GY-D1256的相对分子质量及其分布。通过对流动相、溶解时间、流速的筛选,确定了较佳的测试条件。实验结果表明,采用通用校正法测得GY-D1256的数均相对分子质量M_n为23 234,重均相对分子质量M_w为40 359,相对分子质量分布M_w/M_n为1.665。
The molecular weight of polycarboxylate dispersant GY-D1256 was measured by gel permeation chromatography （GPC）. The test condition was optimized by adjusting the mobile phase, dissolution time and mobile rate. The results showed that the number-average molecular weight Mn of GY-D1256 was 23 234, the weight-average molecular weight Mw was 40 359, and the molecular weight distribution Mw/Mn was 1.665, which were calculated by universal calibration method.
作者
范娅
纪三郝
卢忠利
张春华
张宗俭
Fan Ya;Ji San-hao;Lu Zhong-li;Zhang Chun-hua;Zhang Zong-jian(Central Research Institute of China Chemical Science and Technology Co.,Ltd.,Beijing 100083,China)
出处
《现代农药》
CAS
2018年第4期21-23,共3页
MODERN AGROCHEMICALS
