State whether it is possible to determine whether one polymer is more likely to crystallize than the other. If it is possible, note which is the more likely and then cite reason(s) for your choice. If it is not possible to decide, state why. a) Linear and syndiotactic poly(vinyl chloride); linear and isotactic polystyrene b) Network phenol-formaldehyde; linear and heavily crosslinked cis-isoprene c) Linear polyethylene; lightly branched isotactic polypropylene d) Alternating poly(styrene-ethylene) copolymer; random poly(vinyl chloridetetrafluoroethylene) copolymer

State whether it is possible to determine whether one polymer is more likely to crystallize than the other. If it is possible, note which is the more likely and then cite reason(s) for your choice. If it is not possible to decide, state why. a) Linear and syndiotactic poly(vinyl chloride); linear and isotactic polystyrene b) Network phenol-formaldehyde; linear and heavily crosslinked cis-isoprene c) Linear polyethylene; lightly branched isotactic polypropylene d) Alternating poly(styrene-ethylene) copolymer; random poly(vinyl chloridetetrafluoroethylene) copolymer

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The number-average molecular weight of a polymer is 1775380 g/mol. Compute the degree of polymerization. (express in whole number) repeat unit is: ... HH || -C-C- I T H CH₂ Molar Mass: Carbon 12.01 g/mol Chlorine 35.45 g/mol Fluorine 19.00 g/mol Hydrogen 1.008 g/mol Oxygen 16.00 g/mol
The following chemical structure represented one of the: * R2 R3-N -R1 X- R4 -External antistatic agent -Internal antistatic agent -Non-ionic antistatic agent The role of polar group in external plasticizer is: * -Interact with polar sites on polymer molecules -Form link among polymer chains -Reduces the intermolecular interactions between neighboring polymer chains
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f. An alternating copolymer is known to have a number-average molecular weight of 250,000 g/mol and a degree of polymerization of 3500. Compute the repeat unit molecular weight of copolymer.
Rank the following monomers in order of increasing reactivity toward anionic polymerization (least reactive to most reactive).
A thermoplastic, also known as thermosoftening plastic, is a polymer that turns to a liquid when heated and freezes to a very glassy state when cooled sufficiently. Most thermoplastics are high-molecular-weight polymers whose chains associate through weak Van der Waals forces (polyethylene); stronger dipole-dipole interactions and hydrogen bonding (nylon); or even stacking of aromatic rings (polystyrene). Explain the differences between a thermoplastic and thermosetting polymers regarding the processes and the usages.
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( do complete with explanation plz )