1 / 14

Types of Polymers and reactions

Types of Polymers and reactions. Formations and linkages. What are polymers?. Alkene molecules have the ability to add onto one another and produce large molecules these are polymers. Therefore what are monomers?

avak
Download Presentation

Types of Polymers and reactions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Types of Polymers and reactions Formations and linkages

  2. What are polymers? • Alkene molecules have the ability to add onto one another and produce large molecules these are polymers. • Therefore what are monomers? • The process of these large molecules forming is termed addition polymerisation. • NOTE POLYMERISATION IS NOT RESTRICTED TO CARBON-CARBON DOUBLE BOND COMPOUNDS.

  3. TYPES • Condensation polymers eg. Polyester, polyamides, proteins • Polysaccharides • Disaccharides • Monosaccharide

  4. Condensation Polymers • This is the process where molecules that have functional groups either end undergo a condensation reaction with another molecule and its functional group and as a result a ester is formed. The process condensation polymerisation and the polymer is condensation polymer.

  5. Polyesters • Please explain how polyesters are formed and give a example, make sure you use appropriate terminology in your explanation. (time limit 8-10min)

  6. Polyamides • Are condensation polymers where monomers join by amide links these are similar to polyesters in that they can form homopolymers and copolymers. • What is meant by homopolymersand copolymers? And what is the difference between functional groups in these polymers?

  7. Proteins • Proteins are high molecular mass copolymers made from condensation polymerisation between amino acids monomers. • There are 20 different monomers proteins can be constructed from so these make up a large number of proteins. • What are the four structural features in proteins that the amino acids have in common?

  8. The protein polymer • To form peptide linkages two amino acids link together. One alpha amino acid reacts its NH₂ group with the other amino acids COOH group forming the link CO-NH. • If we have a smaller number of monomers linked together than having a complete protein we call these polypeptides. Obviously if we have two monomers linked together this is called a dipeptide. • http://www.studyon.com.au/secure/Index?pk=019235b40e6d11fe&isbn=1742160859&fp=1&sectionNo=0&cookie=0 • http://www.studyon.com.au/secure/Index?pk=019235b40e6d11fe&isbn=1742160859&fp=1&sectionNo=0&cookie=0

  9. Summary of peptide linkage

  10. Polysaccharides • Or known as carbohydrates/sugars, the simplest form of these are monosaccharides if we have two of these sugars bonded together these are disaccharides. • Oligosaccharides are when we have 3 up to 10 mono’s per molecule • Polysaccharides is when we have 10 to thousands of mono’s

  11. Monosaccharides • These are linked together by a C-O-C known as a ether linkage or glycosidic bond. • http://www.studyon.com.au/secure/Index?pk=019235b40e6d11fe&isbn=1742160859&fp=1&sectionNo=0&cookie=0 • Also please refer to page 230 figure 7.45

  12. Polysaccharides • The three main polysaccharides that you will need to know are glycogen, starch and cellulose. • These each differ from each other in relation to their ether linkages the amount of branches in their polymer chains and the degree of polymeristion.

  13. Fractional distillation • http://www.studyon.com.au/secure/Index?pk=019235b40e6d11fe&isbn=1742160859&fp=1&sectionNo=0&cookie=0 • Read pages 233-235 • Pre-treatment • Atmospheric distillation • Vacuum distillation • cracking

  14. Questions • Ex 7.4 all • Ex 7.5 Q3,4,5,6 • Ex 7.6 Q1,3 • Review Q5,6

More Related