The polymer used in making synthetic hair wigs is made up of:
(A) C₂H₃CH=CH₂
(B) CH₂=CH-CH=CH₂
(C) CH₂=CHO
(D) CH₂=CHCOOCH₃
Answer (2)
The polymer used in making synthetic hair wigs is most likely derived from methyl acrylate, represented by option (D) CH₂=CHCOOCH₃. This polymer can create materials similar in texture to natural hair. While other options represent various monomers, option (D) is the most relevant for wig production.
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The polymer used in making synthetic hair wigs is typically a type of acrylic fiber known as 'modacrylics,' which is made from acrylonitrile and other comonomers. To determine which option represents the polymer used, let's examine the given chemical formulas:
(A) C₂H₃CH=CH₂ : This represents butadiene. It is not typically used to make synthetic hair fibers but is more often used in the production of synthetic rubber.
(B) CH₂=CH-CH=CH₂ : This is also butadiene, similar to option A. It is used in rubber production and not for synthetic hair wigs.
(C) CH₂=CHO : This represents acrolein, a toxic compound not used in the production of synthetic hair fibers.
(D) CH₂=CHCOOCH₃ : This is methyl methacrylate (MMA). While MMA is a component of certain acrylic plastics, the more relevant compound for synthetic hair wigs is acrylonitrile, which is often polymerized to form fibers like Orlon or modacrylics.
The closest option to what is used for synthetic hair fibers, though not a direct match to the chemical composition typically seen in those fibers, is Option (D) as methyl methacrylate is related to types of acrylics. However, none of the options fully represents the composition of modacrylic fibers.
