By

WINAHYU DINI YUNITA

Copolymer

Natural polymer Synthetic polymer

Thermoset polymer

HomopolymerThermoplastic polymer

POLYMER

MONOMER

POLYMERIZATION (addition & condensation)

USES

Basic Competence To describe structure , naming , classification , properties and

uses of the macromoleculars

Learning ObjectivesBy the end of this matter, students should be able to :

• To identify natural polymers and synthetic polymers (rubber, carbohydrate, protein and plastic)

• To write polymerization of the polymers • To desribe uses of polymers

What are polymers?

Addition Polymerization

Condensation Polymerization

monomers have two functional groups or combining two molecules by removing a small molecule

monomers have double bonding ( C = C)

n

R4R2

R3R1

R1 R2

R3 R4 nMonomers

Addition Polymer

Steps in addition polymerization of ethylene

(Orlon)

(Plexiglas)Skylight ; solar panels ;

Bowling balls

CH2=CH – CH =CH2

│ CH3

CH2 – CH=CH – CH2

│ CH3 n

Natural rubber(Polyisoprene)

Natural rubber / Polyisoprene

N CH C + (n-1) H2O

N CH C

O

H R

O

H Rn

Protein1

H N CH C OH +

O

H R

H N CH C OH

O

H R

Amino acid Amino acid

Peptide link

2

H

3

Bakelite4

Based on sourcesBased on

kinds of monomerBased on

elasticity properties

Natural Polymer

Synthetic Polymer

Homopolymer(single monomer)

Copolymer(different monomer)

Thermoplastics(will reform when melted)

Thermo sets (not reform)

• Protein• Natural Rubber• Cellulose• Amylum

PE ; PP ; Teflon ; PVC ; orlon ; plexiglas ; etc

PE ; PP ; Teflon ; PVC ; orlon ; Plexiglas ; protein ; cellulose ; natural rubber ; polystyrene

Nylon 6-6 ; dacron ; bakelite ; SBR

• PE• PVC• PP

• Bakelite• Teflon• Melamine