Chemistry · Proteins: Elementary idea of a-amino acids, peptide bond, polypeptides, proteins: primary, secondary, tertiary and quaternary structure (qualitative idea only), denaturation of proteins, enzymes
Which of the following monomer will make PHBV more flexible?
Which of the following monomer will make PHBV more flexible?
- A. \( \beta \) - hydroxy butyric acid
- B. \( \beta \) - hydroxy velaric acid
- C. Glycine
- D. Lactic acid
Step-by-step solution
PHBV is a copolymer of 3-hydroxybutyrate (HB) and 3-hydroxyvalerate (HV). The flexibility of PHBV increases with higher HV content because the ethyl side chain in HV reduces crystallinity and enhances flexibility. Option B corresponds to β-hydroxy valeric acid, which is the monomer for HV. Options A, C, and D are not the correct monomers to increase flexibility.
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