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Molecular‐weight‐controlled synthesis and dye‐fixing properties of poly(dimethyldiallylammonium chloride)
Author(s) -
Yu Yikai,
Zhang Yuejun
Publication year - 2010
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.20243
Subject(s) - monomer , chloride , materials science , molar mass distribution , polymerization , rubbing , polymer chemistry , chemical engineering , vinyl chloride , polymer , composite material , copolymer , engineering , metallurgy
The effects of synthesis conditions on the properties of poly(dimethyldiallylammonium chloride) (PDMDAAC), especially the molecular weight, were studied in detail in order to assess a new method for the molecular‐weight‐controlled synthesis of PDMDAAC. This method was used to synthesize a series of PDMDAACs with different molecular weights, and then the relationships between the molecular weight and the dye‐fixing properties were studied in detail in order to investigate a new way for improving these properties. The results showed that the molecular weight of PDMDAAC could be controlled by polymerization temperature, monomer concentration, and initiator amount, in agreement with the kinetic chain length equation, and a series of PDMDAACs with characteristic viscosities of 0.18–0.81 dL/g was synthesized by the given synthesis method. The dye‐fixing properties of the PDMDAACs depend on their molecular weight, and when their characteristic viscosities were controlled in the range of 0.24–0.47 dL/g, they exhibited better dye‐fixing properties than PDMDAACs with other characteristic viscosities and a commercial PDMDAAC dyefixative. In addition, the wet rubbing fastness, color fastness to soaping, and white fabric staining were significantly improved by controlling the molecular weight. Thus, the fastness properties of the PDMDAACs could be improved by controlling their molecular weight, and promising PDMDAAC dyefixatives could be synthesized by the new synthesis method. J. VINYL ADDIT. TECHNOL., 2010. © 2010 Society of Plastics Engineers