Please help me with the question below. A detailed explanation to aid in understanding is welcome. Draw a section of the chain (four or five repeating units) of each of the following head-to-tail polymers:(a) syndiotactic poly(vinyl alcohol)(b) isotactic poly(a-methylstyrene)(c) atactic 1,2-polybutadiene(d) syndiotactic poly(1,2-difluoroethylene)

Step 1:(a) Vinyl alcohol monomers arranged in repeating units would make up the structure of…

Answered: Draw a section of the chain (four or…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter10: Fuels, Organic Chemicals, And Polymers

Section: Chapter Questions

Problem 59QRT

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In natural rubber or polyisoprene, the trans isomer leads to a higher degree of crystallinity and density than the cis isomer of the same polymer, because(a) it is more symmetrical and regular.(b) it is less symmetrical.(c) it is irregular.
1. Answer the following questions: (a) Why is free radical polymerization more commonly used today than ionic polymerization? (b) Almost all substituted ethylene monomers of commercial importance have the structure of CH2 = CHR or CH2 = CRR’ (where R or R' represent identical or different substituent groups). Why? (c) What are some methods for the production of conductive polymers? Give a few examples.
(b) Draw the structures of the polymers obtained from the followng monomers and name the polymerisation process in each case. H H H CH3 4 1 3 NH2 H2N 5
3. Draw the repeating unit for the condensation polymer formed from the following monomers: (a) C,H;CH(NH2)COOH (b) H2N(CH2);COOH (c) H2N(CH2)6NH2 and (d) CH2OHCH2OH and HOOCC6H&COOH CIOCC6H4COCI
The monomer glycine (NH2-CH2-COOH) can undergo condensation polymerization to form polyglycine, in which the structural units are joined by amide linkages.(a) What molecule is split off in the formation of polyglycine?(b) Draw the structure of the repeat unit in polyglycine.
Teflon is a polymer formed by the polymerization ofF2C“CF2. (a) Draw the structure of a section of this polymer.(b) What type of polymerization reaction is requiredto form Teflon?
3. Dacron is the brand name for the polymer that is made from ethane-1,2-diol and benzene-1,4-dicarboxylic acid. (a) What type of polymer is Dacron? (b) When the two monomers combine, what type of reaction do they undergo and what molecule is eliminated? (c) What is the name for the linkages that join the monomers together?(d) Draw the monomers and the polymer of the reaction to create Dacron. (Use a condensed structural formula in your answer.) HC-C styrene H-O-C- ethane-1,2-diol I H OH НО. 206 H -C-0-H H benzene-1.4-dicarboxylic acid.
Which of the following three compounds:- polyethylene [essentially no vapor pressure at 1 atm]- menthone [medium vapor pressure at 1 atm]- benzoic acid [low vapor pressure at 1 atm]Is most likely to be amenable to purification by sublimation? Why
(a) Hard contact lenses, which first became popular in the 1960s, were made by polymerizing methyl methacrylate [CH2=C(CH3)CO2CH3] to form poly(methyl methacrylate) (PMMA). Draw the structure of PMMA. (b) More-comfortable softer contact lenses introduced in the 1970s were made by polymerizing hydroxyethyl methacrylate [CH2=C(CH3)CO2CH2CH2OH] to form poly(hydroxyethyl methacrylate) (poly-HEMA). Draw the structure of poly-HEMA. Because neither polymer allows oxygen from the air to pass through to the retina, newer contact lenses that are both comfortable and oxygen-permeable have now been developed.
(a) Hard contact lenses, which first became popular in the 1960s, were made by polymerizing methyl methacrylate [CH2 = C(CH3)CO2CH3] to form poly(methyl methacrylate) (PMMA). Draw the structure of PMMA. (b) More comfortable softer contact lenses introduced in the 1970s were made by polymerizing hydroxyethyl methacrylate [CH2 = C(CH3)CO2CH2CH2OH] to form poly(hydroxyethyl methacrylate) (poly-HEMA). Draw the structure of poly-HEMA. Since neither polymer allows oxygen from the air to pass through to the retina, newer contact lenses that are both comfortable and oxygen-permeable have now been developed.
6. Dacron is the brand name for the polymer that is made from ethane-1,2-diol and benzene-1,4-dicarboxylic acid. (a) When the two monomers combine, what type of reaction do they undergo and what molecule is eliminated? [1] (b) What is the name for the linkages that join the monomers together? [1] (c) Draw the monomers and the polymer of the reaction to create Dacron. [3]

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Draw a section of the chain (four or five repeating units) of each of the following head-to-tail polymers: (a) syndiotactic poly(vinyl alcohol) (b) isotactic poly(a-methylstyrene) (c) atactic 1,2-polybutadiene (d) syndiotactic poly(1,2-difluoroethylene)