Polymers

Question 1

What are the 3 corner stones of polymer science

Answer 1

colloids and interfaces

organic chemistry

physical chemistry

Question 2

what role do polymers have in pharmacy

Answer 2

drug delivery
devices
packaging
active ingredients

Question 3

how are polymers used in drug delivery

Answer 3

tableting
solubilisers
emulsifiers
gels
coatings
pharmacologically active polymers

Question 4

how are polymers used in devices

Answer 4

inahlers

injectors

Question 5

what is the difference between polymers and small molecules

Answer 5

aggregate state
dissolution
solution properties
mechanical properties

Question 6

What state can polymers never be in

Answer 6

gaseous state

Question 7

what is the first state of polymer dissolution

Answer 7

swelling

Question 8

Polymer solutions vs solutions viscosity

Answer 8

have higher viscosity compared to solutions of low molecular weight substances of the same concentration

Question 9

can polymers show elasticity and reversible deformations

Answer 9

yes under certain conditions

Question 10

what is a monomer

Answer 10

monomer, a molecule of any of a class of compounds, mostly organic, that can react with other molecules to form very large molecules, or polymers.

Question 11

what is an oligomer

Answer 11

a polymer whose molecules consist of relatively few repeating units.

Question 12

what is a polymer

Answer 12

polymer, any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, that are multiples of simpler chemical units called monomers.

Question 13

what is a macro molecule

Answer 13

is a molecule that consists of one or more types of repeated ‘building blocks’.

Question 14

what is a polymer chain

Answer 14

Polymer chains are fractal objects whose dimensionality is determined by interactions between the monomeric units and solvent molecules.

Question 15

what is an elementary unit

Answer 15

One of the individuals which, in the aggregate, compose a population: the smallest unit yielding information which, by suitable aggregation, leads to the population under investigation.

Question 16

What is degree of polymerisation

Answer 16

The degree of polymerization, or DP, is the number of monomeric units in a macromolecule or polymer or oligomer molecule

Question 17

What is polydispersity

Answer 17

polydispersity is defined as the weight average divided by the number average molecular weight (Mw/Mn)

Question 18

What is homopolymers and copolymers

Answer 18

A homopolymer is a polymer where every monomer unit (mer) of the chain is the same

a polymer made by reaction of two different monomers, with units of more than one kind.

Question 19

how do we calculate the molecular weight of a polymer

Answer 19

take weight of repeating unit then multiply by the degree of polymerisation

Question 20

what is configuration (molecular architecture)`

Answer 20

refers to the order that is determined by chemical bonds. The configuration of a polymer cannot be altered unless chemical bonds are broken and reformed.

Question 21

What is it called when only one type of monomer is used to build a macromolecule

Answer 21

homopolymer

Question 22

what are the 6 types of molecular architecture of homopolymers

Answer 22

branched
linear
ladder
star
dendrimer
crosslinked

Question 23

what are the four types of copolymers

Answer 23

statistical random copolymers
alternating copolymers
block copolymers
graft copolymers

Question 24

What are the two main types of polymers

Answer 24

natural

synthetic