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- Title
Preparation and characterization of poly(dimethyldiallylammonium chloride) with high molar mass using high purity industrial monomer.
- Authors
Xu Jia; Yuejun Zhang
- Abstract
A preparation method for high molar mass polydimethyldiallylammonium chloride PDMDAAC is reported in this article. PDMDAAC was prepared by using the high purity industrial grade dimethyldiallylammonium chloride DMDAAC monomer from onestep method and ammonium persulphate APS as the initiator. The initiator was added all at once and the reaction temperature was increased stepwise to complete the polymerization gradually. The effects of several polymerization condition variables on the intrinsic viscosity value η and monomer conversion rate Conv. of product PDMDAAC were investigated, respectively. The variables included: T142.0 to 52.0°C, T247.5 to 57.5°C, T355.0 to 75.0°C, mDMDAAC 60.0 to 70.0, mAPS : mDMDAAC 0.25 to 0.45, mNa4EDTA : mDMDAAC 0 to 0.0071. Under an optimum condition of T1 46.0°C, T2 52.5°C, T3 65.0°C, mDMDAAC 65.0, mAPS : mDMDAAC 0.35, mNa4EDTA : mDMDAAC 0.0035, the maximum η of obtained product PDMDAAC reached 3.43 dLg, at a Conv. of 100.00. The Mwof the product measured with GPCMALLS was 1.034 × 106, polydespersity MwMnwas 2.421, and the Rgwas 60.3 nm. The structure and properties of products were characterized by FTIR and NMR. Thermal decomposition was determined by TGADSC. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
- Subjects
AMMONIUM chloride; MONOMERS; AMMONIUM; CHEMICAL reactions; POLYMERS
- Publication
Journal of Applied Polymer Science, 2010, Vol 118, Issue 2, p1152
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.32426