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Polyquaternium-43 monomers
What are the monomers of polyquaternium-43?Wikepedia and CosIng seem to be erroneous.Other sources are varied.Wikipedia:acrylamide, acrylamidopropyltrimonium chloride, 2-amidopropylacrylamide sulfonate and dimethylaminopropylamineCosIng://, //, 2-amidopropylacrylamide sulfonate, and dmapaProtect & Gamble://, //, 2-amidopropylacrylamide Sulfonate, and dimethyaminopropylacrylatealso Protect & Gamble://, //, 2-amidopropylacrylamide Sulfonate and dimethylaminopropylamineThe Role of Polymers in Cosmetics: Recent Trends:
//, //, 2-acrylamidopropyl sulfonate, DMAPAWho is the real “DMAPA”?And it seems neither 2-amidopropylacrylamide sulfonate or 2-acrylamidopropyl sulfonate makes sense. -
3 Replies
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@zetein This is a co-polymer, and it seems to have few monomers. You can read this report: https://www.google.com/url?sa=t&source=web&rct=j&url=https://ifscc.org/wp-content/uploads/2018/05/Analysis-of-Polymers-for-Cosmetics.pdf&ved=2ahUKEwiA_dvFkof4AhXyA7kGHUF6ADEQFnoECBcQAQ&usg=AOvVaw3KHYSnajtSlHCzReq9SKJA.
Your wikipedia reference seems to be closer in naming all.
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Yes, I know it’s made of 4 different monomers. The first two are determined, so I skipped them in the original post.However the last two don’t make sense to me.In the file you linked, it tells:Acrylamide-Acrylamidopropyltrimonium Chloride-2-Acrylamidopropyl Sulfonate-DMAPASo the first two are certain.The third one:2-Acrylamidopropyl SulfonateIs it supposed to be a salt? If it’s a salt, why it doesn’t have its counter ion named? It should be Sodium 2-Acrylamidopropyl Sulfonate or others.What’s more strange is that if you go search exactly for 2-Acrylamidopropyl Sulfonate you won’t get many result, almost like it doesn’t exist. The more common monomer used for polymering is 2-Acrylamido-2-methylpropane sulfonate (in INCI as acryloyldimethyl taurate) which has an additional -CH3.Why would PQ-43 use the illusive one without -CH3, or in reality it’s 2-Acrylamido-2-methylpropane sulfonate that is used, all the data being erroneous?The last one: DMAPA, what does it stand for? If it’s dimethylaminopropylamine, how could it copoly with other three acrylate derivative?I would guess it shoule be yet another acrylate derivative dimethylaminopropylacrylamide? But why the data uses the ambiguous abbreviation only in this one.
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Now it’s even more confusing. A totally different list was given.
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