C2-HC10

Question 1

Biomaterials=

Biocompatibility=

Answer 1

is a nonviable material used in a medical device, indented to interact with biological systems. This ‘nonviable material’ can be any matter, surface, or construct that interacts with biological systems. This biomaterial has to be biocompatible, non-toxic.

Biocompatibility= is the ability of a material to perform with an appropriate host response in specific application.

Question 2

Supramolecular chemistry=

Superamolecular bond=

Supramolecular polymer=

Answer 2

Supramolecular chemistry= chemistry beyond the covalent bond.

Super molecular bond= non-covalent bond.

Supramolecular polymer= It is also build with monomers, but they have non-covalent interactions.
> Polymeric arrays of monomeric units that are bought together by reverse (you can also take it apart and resemble again) and highly directional non-covalent interactions, resulting in polymeric properties in dilute and concentrated solution as well as in the bulk (the total material).

Question 3

Crown ethers:

Answer 3

Crown ethers: ion bond makes it a supramolecular molecule. This is the first molecule they discovered.

Question 4

Important for polymers:
1
2

Answer 4

1 High association constant:

- Low association constant: more momomers in the dissociation state than in the associated state. You don't want that. If you want to make a long polymer, you need a high association constant. 
- Degree of polymerization = the amount of monomers in a polymer chain.
- To make a supramolecular polymer in water, you need to introduce a hydrophilic side (so the molecule with not compete with water to make hydrogen bonds).

2 High purity of bifunctional monomers:
- If you have an impurity on the polymer, another type of monomer with a different orientation could stop the chain polymerization, so the degree of polymerization is lower and the polymers are shorter.

Question 5

To form supramolecular polymers in water we need …

Answer 5

To form supramolecular polymers in water we need hydrophobic interactions so the water molecules don’t dissociate the material.

Question 6

Supramolecular polymers are held by … interactions and no … bonds.

Answer 6

Supramolecular polymers are held by supramolecular interactions and no covalent bonds.