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Module 8 Portage 219 Organic Chemistry Questions and Answers | Latest Update $12.49   Add to cart

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Module 8 Portage 219 Organic Chemistry Questions and Answers | Latest Update

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  • 219 Organic Chemistry
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  • 219 Organic Chemistry

Polymer large molecule made by repetitive linking of smaller units (monomers) Macromolecule very large molecule composed of thousands of covalently bonded atoms (ex: polymer) 1. natural (in nature) 2. synthetic (in lab) two ways polymers are made rubber, carbs: starch & cellulose, prot...

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  • September 27, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • 219 Organic Chemistry
  • 219 Organic Chemistry
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2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!

Module 8 Portage 219 Organic Chemistry
Questions and Answers | Latest Update
Polymer


✓ large molecule made by repetitive linking of smaller units (monomers)




Macromolecule


✓ very large molecule composed of thousands of covalently bonded atoms

(ex: polymer)




1. natural (in nature)


2. synthetic (in lab)


✓ two ways polymers are made




rubber, carbs: starch & cellulose, proteins, nucleic acids DNA, RNA


✓ natural polymers




nylon, teflon, styrofoam, polyethylene, Dacron,


✓ synthetic polymers




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,2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
1. method of formation


2. final composition


3. stereochemical orientation


✓ 3 main ways to differentiate polymers




1. chain-growth


2. step-growth


✓ Two classifications of Synthetic polymers




addition polymers


✓ chain growth polymers are also know as:




made by addition of one monomer unit to another in a repetitive pattern


✓ How are chain growth polymers made?




chain growth polymerization


✓ A polymerization involving sequential addition to monomers that are

unsaturated (C=C) or have some other reactive functional groups

(particularly ethylene and derivatives)


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, 2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!


1. intervention


2. consumption of all available monomers


✓ what 2 things stops chain growth polymerization?




Teflon


✓ chain-growth

polymer: polytetrafluoroethylene


monomer: F2C=CF2


nonstick coating, goretex, electrical insulator, chem-resistant coating




Saran


✓ chain-growth

polymer: polyvinylidenedichloride


monomer: H2C=CCl2


cling-wrap




Polypropylene




1 | P a g e | G r a d e A + | 2 0 0 2 5

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