Linear polymers: These polymers are formed of long straight chains. The monomers in these are linked together to form a long chain. (iii) During the preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, the water or the ester should be removed as soon as it is formed. 4.5k VIEWS. Chemistry Assignment Help, Classification of polymers - on the basis of structure, Classification of polymers - On the basis of structure On the basis of structure of polymers these can be classified as (i) Linear polymers (ii) Branched chain polymers (iii) Cross linked polymers These polymers are represented as: For e.g., low density polythene (LDP), amylopectin, etc. Polymers can also be classified on the basis of mode of polymerisation into two subgroups. Examples of such polymers include bakelite and melmac. Give an example of a biodegradable aliphatic polyester. Calculate the rate during this interval? Chemistry. The practical utility of polymers depends upon their mechanical properties such as, tensile strength, elasticity, toughness, etc. Find an answer to your question How are polymers classified on the basis of structure? Based on tacticity/ molecular forces. Answer: On the basis of structure, polymers are classified as : (i)Linear polymers in which the monomers are joined together to form long straight chains of polymer molecules. Why? HDPE, Nylons 17. (ii) Branched chain polymers: These polymers contain linear chains having some branches. Cross-linked or Network polymers: These polymers have many cross-linking bonds that give rise to a network-like structure. Classification based on source:- • On the basis of sources of polymers they are classified in three types. These are also known as man-made polymers. Answer : On the basis of structure, the polymers are classified as follows :
(i) Linear polymers such as high density polythene (HDP), polyvinyl Woride, nylons, polyester, etc. Chemically carbohydrates are polyhydroxy aldehydes or ketones, their simple derivatives or their polymers. Also find the composition of the vapour phase. Nitrogen exists as diatomic molecule and phosphorus as P4. They are called plant and animal polymers. They can be depicted as: For e.g., high density polythene (HDP), polyvinyl chloride, etc. Also, there are polymers which instead of carbon have other elements in its backbone. (ii) There are two -NH2 groups in semicarbazide. Branched chain polymers: These polymers are basically linear chain polymers with some branches. However, only one is involved in the formation of semicarbazones. Explain the difference between Buna-N and Buna-S. Polymers are classified on the basis of structure as follows: 1. Addition polymers: The addition polymers are formed by the repeated addition of monomer molecules possessing double or triple bonds, e.g. Classification based on the structure of polymers :- • On the basis of structure they are classified in three types - a) Linear polymers - • In these polymers monomers are linked with each other and form a long straight chain. How the following conversions can be carried out? Their molecules are closely packed and have high density, tensile strength, and melting point. Physics. E.g. In addition to classifying polymers on the basis of their processing characteristics, polymers may also be classified according to their mechanism of polymerization. In a polymer, various monomer units are joined by strong covalent … Cross-linked or Network polymers: These polymers have many cross-linking bonds that give rise to a network-like structure. Polyethene, PVC, Nylons, polyesters etc.
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