What are polymers based on?
Polymers are all created by the process of polymerization wherein their constituent elements called monomers, are reacted together to form polymer chains, i.e 3-dimensional networks forming the polymer bonds. The type of polymerization mechanism used depends on the type of functional groups attached to the reactants.
Are all polymers hydrocarbons?
Although many polymers are hydrocarbons that contain only carbon and hydrogen, other polymers may also contain oxygen, chlorine, fluorine, nitrogen, silicon, phosphorus, and sulfur. Natural polymers, such as cellulose and latex, were first chemically modified in the 19th century to form celluloid and vulcanized rubber.
Are all polymers alkanes?
The first one is an Alkane, but if the chain was much longer, it would be structurally the same as the Polymer (Second image). Polymers aren’t necessarily made from alkenes ! What is more, you can have all kinds of functions on polymers. Some polymers are by definition alkanes.
How are polymers classified based on source?
On the basis of source polymers are classified as: Natural polymers (Example: Starch, Cellulose, Portions, etc.) Synthetic polymers (Example: PVC, -Nylon Teflon, etc.) Semi-synthetic polymers (Example.
How are polymers are classified on the basis of their structure?
Classification of Polymers based on its Structure Based on structure, polymers are classified as Linear polymers, Branched-Chain polymers, and Cross-Linked polymers. Linear polymers are structured such that they have long and straight chains.
What are polymers that contain only carbon and hydrogen?
A hydrocarbon is any of a class of organic chemicals made up of only the elements carbon (C) and hydrogen (H).
What are polymers how they are formed?
Polymers are formed by two main ways called addition and condensation polymerization. In addition, polymerization, an initiator (or catalyst) reacts with a starting monomer. The result of this initiation reaction is a monomer attached to the initiator with an unsatisfied bond.
Are all polymers alkenes?
During the polymerisation of ethene, thousands of ethene molecules join together to make poly(ethene) – commonly called polythene. Ethene is known as the monomer. Poly(ethene) is the polymer….
| Temperature: | about 200°C |
|---|---|
| Pressure: | about 2000 atmospheres |
| Initiator: | a small amount of oxygen as an impurity |
Are addition polymers only made of alkenes?
Alkenes can be used to make polymers . Polymers are very large molecules made when many smaller, reactive molecules join together, end to end. The smaller molecules are called monomers. The polymers formed are called addition polymers.