Question
Name any two polycarboxylic acids which can behave as pH-responsive polymers.
Answer :
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Two commonly used polycarboxylic acids that behave as pH-responsive polymers are poly(acrylic acid) (PAA) and poly(methacrylic acid) (PMAA). These polymers contain pendant carboxyl (-COOH) groups that can ionize depending on the pH of the surrounding environment. At low pH, the carboxyl groups remain protonated, and the polymer chains are relatively collapsed due to
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