Fundamentals
Crystallinity
Thermal Prop/Thermal Analysis
Mechanical/Deformation Properties
Grab Bag
100
The inter-atomic forces that are characterized by the sharing of electrons.
What are covalent bonds?
100
This is the building block of a crystal.
Waht is the unit cell?
100
If a polymer demonstrates a Tc (crystallization temperature) during the initial heating pass on the the DSC, this is known as this type of crystallization.
What is cold crystallization?
100
This is equal to the load (force) applied over an area.
What is stress?
100
This chemical element has the symbol "Pt" on the periodic table.
What is platinum?
200
This type of thermoplastic, under the right conditions, will form highly ordered crystalline structures.
What is semi-crystalline?
200
This image is a depiction of...
What is a spherulite?
200
Tm (Melting Temperature) is only observed by this type of thermoplastic.
What is semi-crystalline?
200
This type of deformation observed in polymers will recover immediately once the force is removed.
What is elastic?
200
This is the official collective noun used to describe a vibrant group of flamingos.
What is a flamboyance?
300
A polymer made from two constitutional units.
What is a copolymer?
300
In the crystalline portion of most polymers, the polymer chains fold back on themselves to form these.
What are lamellae?
300
The increase of copolymer and plasticizers both have this influence on glass temperature & melting temperature.
What is decrease?
300
The area of a stress strain curve in which there is an increase in elongation with little to no increase in stress.
What is cold drawing?
300
Tom Hanks, Michael Keaton, Ellen DeGeneres, and Owen Wilson all have this in common.
What is voice a Pixar character?
400
A polymer that has all of the "r" groups on one side of the molecule has this type of tacticity.
What is isotactic?
400
Molecules which go between and connect with two lamellae are known as these.
What are tie molecules?
400
These are small molecules that keep molecular chains apart and allow more movement at lower temperatures but may also increase permeation.
What are plasticizers?
400
These 2 engineering elements can be used to represent both the elastic & viscoelastic/plastic behavior of thermoplastics.
What are the spring and dashpot?
400
This musician is the godmother to Elton John's sons.
Who is Lady Gaga?
500
In Thermoplastics, the molecules are linked by this type of chemical bond.
What are Secondary forces or Van Der Waals Forces?
500
Of these 2 polymers, atactic polystyrene and syndiotactic polystyrene, this polymer would have a HIGHER crystallinity.
What is syndiotactic PS?
500
This type of thermal analysis can be used to study degradation properties of polymers.
What is TGA (Thermogravometric Analysis)?
500
These are the 4 main stress strain curve types for packaging thermoplastics.
What is brittle, ductile neck formation, ductile cold draw with strain (orientation) hardening and rubbery?
500
This was the year that Titanic was released.
What is 1997?