What is a monodisperse polymer?

Monodisperse polymers are uniform polymers in which all molecules have the same degree of polymerization or relative molecular mass. The polymer has a polydispersity index (PDI, a measure of the broadness of molecular weight distribution of a polymer) equal to 1. Many biopolymers, especially proteins, are monodisperse.

Which polymer is more uniform or monodisperse?

Therefore, monodisperse polymers are uniform, while polydisperse polymers are non-uniform.

Why do polymers behave differently than monomers?

One major difference between polymers and small molecules (monomers) are the characteristics that polymers exhibit. Polymers normally have higher viscosities, higher boiling points and can show improved mechanical strength over small molecules (monomers).

What is monodisperse system?

Monodisperse systems, which are composed of particles identical in composition and shape, are frequent due to the way that macromolecules are produced in the cell. Monodispersity allows the extraction of model-free information; that is, overall parameters such as the radius of gyration and the molecular weight.

Which is fully fluorinated polymer?

Teflon or polytetrafluoroethylene (PTFE) is a fully fluorinated polymer.

Which one is disadvantage of bulk polymerization?

Disadvantages: Heat transfer and mixing become difficult as the viscosity of reaction mass increases. The problem of heat transfer is compounded by the highly exothermic nature of free radical addition polymerization.

Why are polymers influenced by intermolecular forces?

Polymers. Polymers consist of very long molecules that contain chains of carbon. There are greater intermolecular forces between the long chains compared with smaller simple molecules. This means that polymers have a higher melting point than many other organic molecules.

How does polydispersity index explain the polydispersity or Monodispersity of a polymer?

PDI means polydispersity index. In polymer language this usually refers to ratio of weight average molecular weight (Mw) to number average (Mn) sometimes also called as molecular weight distribution. A PDI =1 indicates polymer chain to be monodisperse.

What is the use of fully fluorinated organic compounds?

Hydrofluorocarbons (HFCs), organic compounds that contain fluorine and hydrogen atoms, are the most common type of organofluorine compounds. They are commonly used in air conditioning and as refrigerants in place of the older chlorofluorocarbons such as R-12 and hydrochlorofluorocarbons such as R-21.