Synthesis of Graft Copolymers from Diallyldimethylammonium Chloride and Acrylamide

Lin, Yun-Qing; Butler, George B.

doi:10.1080/00222338908052002

“…The cationic flocculant is the suitable candidate. Cationic flocculants can be prepared by modifying polyacrylamide (PAM) or by copolymerizing acrylamide (AM) with other monomers containing cationic charged groups [2,3]. In this work, the copolymerization of DMDAAC with AM was carried out.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Copolymer of Dimethyldiallylammonium Chloride and Acrylamide

Wu

¹

,

Zhang

²

2006

AMR

2

0

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The inverse emulsion polymerization of dimethyldiallylammonium chloride (DMDAAC) with acrylamide (AM) was carried out using a redox system as initiator, petroleum ether as oil, and Span-85 and Tween-80 as emulsifiers. The cationic degree of the copolymer increased markedly when AM was fed into the system in batch. The effect of DMDAAC content on the intrinsic viscosity ([η]) and solubility of the copolymer, and the methods of feeding AM on the cationic degree and solubility of the copolymer was studied in this work. The cationic degree of 39.8% of the copolymer was achieved. When the molar ratio of AM to DMDAAC was 4.0, the copolymer with [η] of 10.02 dl/g and the dissolving time less than 15min was obtained. The structure of the copolymer was also characterized by IR spectrum.

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“…In this situation, it is impossible for a flocculant to achieve all effects. Fortunately, modification, grafting, and other means can improve the properties of polymers for various industrial purposes 2, 10–14. Hydrophobically functionalized water‐soluble polymers have shown excellent flocculation properties in the treatment of wastewater containing oil droplets or other hydrophobic substances 15, 16.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and flocculation properties of poly(diallyldimethyl ammonium chloride–vinyl trimethoxysilane) and poly(diallyldimethyl ammonium chloride–acrylamide–vinyl trimethoxysilane)

Zhao

¹

,

Luan

²

,

Gao

³

et al. 2002

J of Applied Polymer Sci

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Poly(diallyldimethyl ammonium chloride-vinyl trimethoxysilane) [P(DAD-MAC-VTMS)] and poly(diallyldimethyl ammonium chloride-acrylamide-vinyl trimethoxysilane) [P(DADMAC-AM-VTMS)], the latter a new cationically charged and hydrophobically modified flocculant, were obtained by radical polymerization initiated by potassium persulfate. The effects of the vinyl trimethoxysilane (VTMS) feed ratio on the intrinsic viscosity and solubility of the polymers were examined. The effects of the flocculants on turbidity removal, decolorization, and oil removal in water treatment were also studied. The introduction of VTMS increased the intrinsic viscosities of P(DADMAC-VTMS) and P(DADMAC-AM-VTMS) in comparison with the viscosities of poly(diallyldimethyl ammonium chloride) and poly(diallyldimethyl ammonium chloride-acrylamide), respectively, but reduced their solubilities. The introduction of VTMS also enhanced the flocculation properties of P(DADMAC-VTMS) and P(DADMAC-AM-VTMS), including turbidity removal, decolorization, and oil removal.

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“…The quantity of VTMS introduced into P(DAD-MAC-VTMS) or P(DADMAC-AM-VTMS) was below the detection limit of IR, NMR, or 13 C-NMR.…”

Section: Cationicitymentioning

confidence: 99%

Synthesis and flocculation properties of poly(diallyldimethyl ammonium chloride–vinyl trimethoxysilane) and poly(diallyldimethyl ammonium chloride–acrylamide–vinyl trimethoxysilane)

Zhao¹,

Luan²,

Gao³

et al. 2002

J. Appl. Polym. Sci.

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Poly(diallyldimethyl ammonium chloride-vinyl trimethoxysilane) [P(DAD-MAC-VTMS)] and poly(diallyldimethyl ammonium chloride-acrylamide-vinyl trimethoxysilane) [P(DADMAC-AM-VTMS)], the latter a new cationically charged and hydrophobically modified flocculant, were obtained by radical polymerization initiated by potassium persulfate. The effects of the vinyl trimethoxysilane (VTMS) feed ratio on the intrinsic viscosity and solubility of the polymers were examined. The effects of the flocculants on turbidity removal, decolorization, and oil removal in water treatment were also studied. The introduction of VTMS increased the intrinsic viscosities of P(DADMAC-VTMS) and P(DADMAC-AM-VTMS) in comparison with the viscosities of poly(diallyldimethyl ammonium chloride) and poly(diallyldimethyl ammonium chloride-acrylamide), respectively, but reduced their solubilities. The introduction of VTMS also enhanced the flocculation properties of P(DADMAC-VTMS) and P(DADMAC-AM-VTMS), including turbidity removal, decolorization, and oil removal.

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Synthesis of Graft Copolymers from Diallyldimethylammonium Chloride and Acrylamide

Cited by 10 publications

References 7 publications

Synthesis and Characterization of Copolymer of Dimethyldiallylammonium Chloride and Acrylamide

Synthesis and Characterization of Copolymer of Dimethyldiallylammonium Chloride and Acrylamide

Synthesis and flocculation properties of poly(diallyldimethyl ammonium chloride–vinyl trimethoxysilane) and poly(diallyldimethyl ammonium chloride–acrylamide–vinyl trimethoxysilane)

Synthesis and flocculation properties of poly(diallyldimethyl ammonium chloride–vinyl trimethoxysilane) and poly(diallyldimethyl ammonium chloride–acrylamide–vinyl trimethoxysilane)

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