Chemical Science Revision Notes - Polymers

By Astha Singh|Updated : January 14th, 2022

The syllabus for the preparation can sometimes seem to be a bit long drawn out to the students, which can also result in missing out on a few topics while preparing for the CSIR NET exam. A well-prepared study note that covers your topics well can prove to be a very convenient source of getting yourself prepared for the exam. This is the perfect place for the students who are struggling to get study notes that covers their syllabus for their exams in a simple and easy way.

Time management, proper exam strategies, and being updated on the news regarding the exam can be the key to success for the student. The study notes can be the best way to revise the topics simply in no time. We at BYJUS EXAM PREP Prep have formulated study notes for Polymers under the subject of Chemical Science to help their CSIR NET 2022 preparations easily.

These notes are created by our subject experts highlighting the most important points in Polymers that the students need to focus on. These notes will help the students to be well prepared for the competitions that they'll be facing in the CSIR NET 2022 examination. Go through the full article to have the access to the study notes and make your preparations for CSIR NET 2022 easy and smart.

Study Notes On Polymers


A polymer consists of a large number of simple monomeric structural units which are repeated to form a giant molecule which is known as a "Macromolecule".

Some examples of polymers:

(1) Polyethylene




(3) Poly Vinyl Chloride [PVC]



Degree of Polymerization: It is the number of monomeric units present in a macromolecule or a polymer. Mathematically, it can be expressed as:


M = Molar mass of polymer, m = Molar of monomeric units 

Classification of polymers:

1). Isotactic Polymers: In isotactic, all substituents are present on the same side of the macromolecular backbone. All asymmetric carbons have the same configuration.


2). Atactic Polymers: These are generally amorphous and are less dense than isotactic. They have a random sequence of the configurations of asymmetric carbon.


3). Syndiotactic Polymers: These polymers have a regular alternation of configuration in molecular chains and the substituent lie alternatively above below the main chain.



4). Copolymers: These are the polymers that are generally derived from more than one species of monomer.


5). Block Polymer: It is a type of copolymer in which blocks are arranged in a linear pattern.


6) Graft Polymers: It is a type of copolymer in which one or more blocks of homopolymer are present as branches.


Number Average Molar Mass: It is the ratio of the total weight of the sample to a total number of molecules. Its expression is:


Each molecule counts equally. It is used in Osmotic pressure, End group analysis, Colligative properties. 

Mass Average Molar Mass: It can be calculated as:


Each molecule contributes to its mass.

If C denotes the concentration of polymer solution in gm/unit volume, then


It is used in light scattering, Sedimentation velocity.

Study Notes On Polymers- Click Here to Download PDF 

Check Out:

Stay Tuned for More Such Articles !!

~ Kindly Upvote this article and share it among your friends. 

BYJU'S Exam Prep Team

Download the BYJU’S Exam Prep App Now. 

The Most Comprehensive Exam Prep App.


App Link


write a comment

Follow us for latest updates