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Polymers

This blog 'polymers' contains all information about polymers. 
"Polymers" include the following topics
  • Polymers
  • Monomers
  • Polymerisation
  • Classification on the basis of monomers
  • Classification on the basis of source of availability
  • Classification on the basis of structure
  • Classification on the basis of mode of synthesis
  • Difference between addition and condensation polymers
  • Addition and condensation polymers
  • Classification on the basis of Molecular forces
  • Polymer structure
  • Stereochemistry of polymers
  • Source Based nomenclature of polymers
  • Trade Based nomenclature of polymers
  • Polymer Rheology
  • Polymer solubility
  • Molecular weight of polymers
  • Polydispersity Index
  • Determination of molecular weight of polymers by viscosity method.
  • Datermination of molecular weight of polymers by osmotic pressure method
  • Determination of molecular weight by Light scattering method 
  • AND MORE

Comments

  1. UnknownJune 27, 2021 at 2:25 PM

    Plz share ur contact number for discussion about pva and other polymer

    ReplyDelete

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Polylactic acid/PLA.

Polylactic acid/PLA. Polylactic acid is a biodegradable thermoplastic polymer . Polylactic acid is obtained from lactic acid monomer. Polylactic acid. Polylactic acid is stable to UV radiation. Polylactic acid has good resistance to moisture. Polylactic acid has good elasticity. Polylactic acid is an aliphatic polyester . It can be used as a food packaging polymer. Polylactic acid is suitable for textile fibre applications such as shirts, carpets, sportswear etc. Polylactic acid is used in implants and medical devices (screws, sutures etc). Polylactic acid is suitable for use in floor mats. Uses of Polylactic acid. Questions on Polylactic acid/PLA; Q1) What is Polylactic acid? Ans) Polylactic acid is a biodegradable thermoplastic polymer. Q2) What is the monomer of Polylactic acid? Ans) Polylactic acid is obtained from lactic acid monomer. Q3) Write some properties of Polylactic acid? Ans) Some properties of Polylactic acid are given below; ...
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Determination of molecular weight by osmotic pressure method

Determination of molecular weight by osmotic pressure method. Osmotic pressure method is also called membrane osmometry. This method is widely used to determine the number average molecular weight of polymers. This method is based on the phenomenon of osmosis. If a pure solvent is separated from a solution through a semipermeable membrane, due to concentration (chemical potential) difference between the solvent and solution, the solvent will flow into the solution through semipermeable membrane. The pressure applied on the solution to completely stop the flow of solvent into it through semipermeable membrane is called osmotic pressure. The theory of osmotic pressure also applies to a solution of polymers. Ordinary solution obeys Van't Hoff equation i.e π=cRT/M Where π is osmotic pressure, c  is concentration in mass per unit volume, R is gas constant, T is temperature and M is molar mass. The polymer solution are non ideal. Taking into account their deviation and us...
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Glyptal

Glyptal Glyptal is a polymer. Glyptal is also known as alkyd resins. Glyptal is formed by condensation polymerisation of ethylene glycol and phthalic acid. Glyptal. Glyptal is a synthetic polymer. It is basically a Polyester. Polyester is a category of polymers that contain the ester functional group in their main chain. Glyptal is non biodegradable i.e it cannot be broken down by natural organisms and acts as a source of pollution. Glyptal is a thermosetting plastic i.e it is a polymer that irreversibly becomes rigid when heated. When its solution in a suitable solvent is evaporated, it leaves a tough but non flexible film. It is therefore used in the manufacture of paints and lacquers. Uses of glyptal. Glyptal is formed by condensation polymerisation of ethylene glycol and phthalic acid, but terylene is formed by condensation polymerisation of ethylene glycol and terepthalic acid. Next
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