V03 Different type of Polymer structure | Linear, Branch, cross-link and Network polymer

The structure of a polymer can be complex, as it involves long chains of repeating monomer units. Polymers can be classified based on their structure into several categories:
1. Linear polymers consist of long and straight chains of repeating monomer units. These chains can pack closely together, resulting in materials that are typically strong and have high melting points. Examples include: Polyethylene (PE), Polyvinyl chloride (PVC)
2. Branched polymers have side chains or branches attached to the main chain. The presence of branches can prevent the chains from packing closely together, affecting the material's properties such as density and crystallinity. Examples include: Low-density polyethylene (LDPE), Glycogen
3.Cross-linked polymers have covalent bonds between different polymer chains, forming a network structure. These cross-links can be either dense or sparse, affecting the rigidity and thermal stability of the material. Examples include: Vulcanized rubber, Epoxy resins,
4. Network polymers are an extreme form of cross-linked polymers, where the chains form a three-dimensional network. These structures are typically rigid and can form hard, thermosetting plastics. Examples include: Bakelite, Melamine formaldehyde
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