Industrial use of polymers is in production of windshields, pipes and automobile parts and technical. Natural polymers: These polymers are found in nature , example plants and animals. Examples are proteins, cellulose, starch, resins and rubber. Classification of materials: Solid materials have been conveniently grouped into three basic classifications: metals, ceramics, and polymers. The characterization of polymer is a vital part of polymer technology. We highlighted that LCA ranking and Green Design rankings do not necessarily correlate exactly. Polymers can be classified in ways that reflect their chemical makeup, or perhaps more importantly, their properties and applications. 2.
Some examples of the synthetic polymers are polyethylene, polystyrene, PTFE synthetic rubber, nylon, PVC, bakelite, teflon, orion, etc. Classification of Polymers There are several ways of classification of polymers based on some special considerations : A- Classification Based on Source Under: this type of classification, there are three sub categories.
Polymers are also used in optical, electronic and many biomedical devices. The Seven Classifications of Plastics: Are They All Really Recycled? The polymers which are prepared in the laboratories are called synthetic polymers. These are also known as man-made polymers.
Chapter 1:Classification of Materials. Examples of synthetic polymers are …
1. February 23, 2011 By Jeffrey Gotro 2 Comments. Tacticity (from Greek τακτικός taktikos "of or relating to arrangement or order") is the relative stereochemistry of adjacent chiral centers within a macromolecule. 1 1. Once the polymers are designed and synthesized, we need to characterize them chemically to confirm their chemical structures and to evaluate their properties for physical behaviors and actual usages .5.1 Instruments and Testing Methods for Polymer Characterization
Many of these factors are strongly interdependent, and most are discussed in much more detail in subsequent sections of this page. Classification of Polymers Polymer is a generic name given to a vast number of materials of high molecular weight.
This scheme is based primarily on chemical makeup and atomic structure, and most materials fall into one distinct grouping or another, although there are some intermediates. Over the last few posts we have been talking about polymer sustainability, use of renewable sources for bio-polymers, Life Cycle Assessments, and Green Design.
Polymerised elements are widely used in agriculture, providing soil with improved nutrients for better plant growth. These materials exist in countless form and numbers because of very large number and type of atoms present in their molecule. The polymers which are prepared in the laboratory are referred to as synthetic polymers or man-made polymers.