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Study on Determining of Retention Performance for Ultrafiltration Membrane with Novel Standard Substance PDMAA
Authors： GUO Chungang1，PAN Xianhui2，LI Hao1，ZHANG Jianhua3，XU Xu1， LI Xuemei1，LV Jinglie1
Units： 1. The Institute of Seawater Desalination and Multipurpose Utilization，SOA(Tianjin)，Tianjin 300192，China；2. National Quality Supervision and Inspection Center for Seawater & Brackish water Utilization Products, Tianjin 300192，China；3. School of Materials Science and Engineering，Tianjin University，Tianjin 300072，China
KeyWords： standard substance；ultrafiltration membrane；retention performance；RAFT polymerization
ClassificationCode：TQ028.8；TQ316.32
year,volume(issue):pagination： 2014, 34(2):60-65

Abstract：

As Benzyl 9H-carbazole-9-carbodithioate(BCBD) was used as the RAFT reagent, Poly(N,N-Dimethyl Acrylamide)(PDMAA) with chromophore was synthesized by Reversible Addition-Fragmentation Chain Transfer (RAFT Polymerization) method. The average molecular weight of PDMAA is 9120 ( )with a low polydispersity(PDI<1.1). There is a good linear relationship between absorbance and the concentration of PDMAA when the concentration of PDMAA in the range of 0.1-2000mg/L at a wavelength of 370 nm. When the synthesized PDMAA was used to determining the retention performance of ultrafiltration membrane, the preliminary results showed the method was more simple and easy with a relative high degree of accurancy compare to the commercial PEG. It is also indicated the RAFT Polymerization is feasible way to develop novel standard substance. 

Funds：
国家海洋局青年海洋科学基金资助项目（2011404）

AuthorIntro：
第一作者简介：郭春刚 (1982- )，男，天津人，硕士，工程师，研究方向为聚合物分离膜材料制备、检测及应用，*通讯作者：郭春刚，电话：022-87898130，E-mail：guoguo19822002@qq.com。

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