HS2339 Polymer Structure And Properties

Question 1

Polymer example: ABS

Answer 1

Question 2

Structure of Components of ABS

Answer 2

Question 3

Styrene Acrylonitrile, vs ABS, components and properties

Answer 3

Stiff and rigid containers

Question 4

Butadiene, used extensively as a copolymer

Answer 4

Sticky mass, not many useful properties by itself. Has a low Tg, can withstand cold well. Wear and ages quickly, as double bond in structure is prone to chemical attack. Amorphous, readily double, short lifespan.

Question 5

Butadiene rubber, abrasion

Answer 5

Withstands abrasion, used in tyres and golf balls. Sealing and binding in render

Question 6

Styrene butadiene, properties and usefulness

Answer 6

Question 7

Acrylonitrile and butadiene

Answer 7

Question 8

Polyethylene, side branches and properties

Answer 8

Can be crystalline, regular chains with many sites for secondary bonding. Rigid in linear form. Branching can manipulate crystalline structure.

Question 9

Comparing different kinds of polyethylene, different properties due to branching

Answer 9

Question 10

Polypropylene

Answer 10

Hydrocarbon, crystalline polymer. Methile pendant group

Question 11

How properties change with increasing atacticity

Answer 11