Biopolymers

arunraj(kudiyan)

jabir kv ijaz(annan) binaz(thavala) shiju vp

Polymer Biomaterials

• There are a large number of uses for polymers in the biomaterials field. These arise due to the wide variety of properties possible.

POLYMERS

•Polymers - long chain molecules of high molecular weight

-(CH2)n-

n State Use

1-4 gas

burned for energy

5-11 liquid gasoline

9-16 med. visc. liquid

kerosene

16-25 hi visc. liq. oil, grease

25-50 solid paraffin wax

1000-3000

tough plastic PE bottles, containers

Common Polymer Biomaterials

Polymers In Specific Applications

The Bulk State : Solid

•Polymers can be either amorphous or semi-crystalline, or can exist in a glassy state.

•amorphous glassy state– hard, brittle– no melting point

•semi-crystalline glassy state– hard, brittle – crystal formation when cooled– exhibit a melting point