PHOSPHONIUM CHLORIDE COPOLYMER

Trialkyl-4-vinylbenzyl phosphonium chloride/ acrylamide copolymers. This type of crosslinked trialkyl-4-vinylbenzyl phosphonium chloride (TRVB)/acrylamide (AAm) copolymers were prepared by copolymeiization of TRVB, AAm, and MBAAm (crosslinking monomer) in dimethyl sulfoxide. Three TRVBs with different alkyl chain lengths (butyl, hexyl, and octyl) in phosphonium groups were used. They are abbreviated as TBVB, THVB, and TOVB, respectively. The copolymers obtained have phosphonium groups. Therefore, they are crosslinked cationic polymers. 

Trialkyl-4-vinylbenzyl phosphonium chloride/ V-isopropylacrylamide (NIP AAm) copolymers. These types of crosslinked TRVB/NIPAAm copolymers were prepared by copolymerization of TRVB, NIP AAm, and MBAAm in dimethyl sulfoxide. Poly(NIPAAm) is a thermosensitive polymer, which has a lower critical solution temperature (LCST) at around 33°C. Therefore, the copolymers are crosslinked cationic polymers and thermosensitive polymers, which swell and deswell below and above the LCST (about 33°C) of poly(NIPAAm). 

Nonaka, T. Watanabe, T. Kawabata, T. Kurihara, S. Preparation of thermosensitive and superabsorbent polymer hydrogels from trialkyl-4-vinylbenzyl phosphonium chloride-V-isopropylacrylamide-V,V -methylenebisacrylamide copolymers and their properties. J. Appl. Polym. Sci. 2001, 79,115-124. 

Cyphos 3453, Cyphos 3453W. See Tributyl (tetradecyl) phosphonium chloride Cypres 310 Surface Size. See Styrene/acrylates copolymer Cypress camphor. See Cedrol Cypress (Cupressus sempervirens) extract CAS 84696-07-1 EiNECS/ELiNCS 283-626-9 Synonyms Cupressus sempervirens ... 

Retarder TSA. See Salicylic acid Retardoi AC. See Tetrakishydroxymethyl phosphonium chloride-urea condensate Retardoi C. See Tetrakis (hydroxymethyl) phosphonium chloride Retardoi S. See Tetrakis (hydroxymethyl) phosphonium sulfate Reten 157. See Acrylamides copolymer Reten 210. See Polyquaternium-5 Reten 215. See Acrylamides copolymer Reten 220. See Polyquaternium-5 Reten 235. See Acrylamides copolymer Reten 300. See Polyquaternium-14 Reten 420. See Polyacrylamide Reten 421, 423, 425. See Acrylamide/sodium acrylate copolymer... 

Polybrominated biphenyl Tetrabromobis (2-ethylhexyl) phthalate Tetrabromobisphenol A di-2-hydroxyethyl ether Tribromophenyl allyl ether Tributyl phosphate Triphenyl phosphate flame retardant, copolymers Tetrabromobisphenol A, bis (2,3-dibromopropyl ether) flame retardant, cotton fabrics Tetrakis (hydroxymethyl) phosphonium chloride... 

This synthetic method has two steps the first step involves synthesising the polymer and the second includes modification with active groups. Some monomers generally used to form the backbone of homopolymers or copolymers include vinyl benzyl chloride, methyl methacrylate, 2-chloroethyl vinyl ether, vinyl alcohol and maleic anhydride. The polymers are then activated by anchoring antimicrobial groups, such as phosphonium salts, ammonium salts or phenol groups, via quaternisation, chloride substitution or anhydride hydrolysis. 

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