Month: September 2014
Structure and Applications Of Fullerenes
What is a Fullerene? A fullerene, is an allotrope of carbon whose molecule consists of carbon atoms connected by single and double bonds so as to form a closed or…
What are Polymers and Classification of Polymers Notes pdf ppt
What is Polymer? A polymer is a high molecular mass compound ranging from 5000 to one million and they are formed by the combination of a large number of one…
Chain and Step Growth Polymerization
Chain growth polymerization: Chain growth polymerization is a polymerization technique where unsaturated monomer molecules add onto the active site on a growing polymer chain one at a time.There are a…
Resins
WHAT ARE RESINS? Resins are typically viscous substances that convert into rigid polymers through a curing process. They are naturally occurring but are now often made synthetically. Some of…
What is Thermoplastic Resin and its Properties Notes pdf ppt
Thermoplastic resin is a polymer compound that becomes soft or fluid when heated and then returns to its original solid state when cooled. This compound is used in molding processes…
Thermosetting Resins
Thermosetting resins Thermosetting resins, polymers or plastic, often called a thermoset, are polymers that are irreversibly hardened by curing from a soft solid or viscous liquid prepolymer or resin. Curing…
Conducting Polymers and Classification of Conducting Polymers Notes pdf ppt
Conductive Polymers: Conductive polymers or, more precisely, intrinsically conducting polymers (ICPs) are organic polymers that conduct electricity. Such compounds may have metallic conductivity or can be semiconductors. The biggest advantage…
Grignard Reagent and Preparation of a Grignard Reagent Notes pdf ppt
What are Grignard Reagents? A Grignard reagent has a formula RMgX where X is a halogen, and R is an alkyl or aryl (based on a benzene ring) group. For…