Polymer, any of a class of natural or synthetic substances composed of very large molecules that are multiples of simpler chemical units. Polymers make up many of the materials in living organisms, and they constitute the basis of certain minerals and hu
Many foods have polymers in them that are polysaccharides; chains of sugars such as glucose and cellulose found in grains, fruits, and vegetables. What are natural polymers made of? There are three main types of structures found in natural polymers. One is made of proteins, one is made of ...
Polymers may be divided into two categories. Natural polymers (also called biopolymers) include silk, rubber, cellulose, wool, amber, keratin, collagen, starch, DNA, and shellac. Biopolymers serve key functions in organisms, acting as structural proteins, functional proteins, nucleic acids, structural...
and occur either naturally or synthetically. Examples of natural polymers arecellulose, shellac and amber. Biopolymers such asproteinsandnucleic acids play crucial roles in biological processes. Common synthetic polymers are Bakelite, neoprene, nylon, PVC (polyvinyl chloride), polystyrene, polyacrylonitrile...
In the last half of the twentieth century, chemists invented dozens of different kinds of synthetic polymers. Most of these compounds were developed to have certain special and desirable properties, such as toughness; resistance to wear; low density; resistance to water, acids, bases, and other ...
⛵️ Rubber Blend - why choosing a blend of natural and synthetic rubber is advantageous for high-quality rubber fenders. Typically, rubber fenders are made from a blend of polymers. more 🔲 Carbon Black – Three facts how Carbon Black influences the quality of rubber compound. ...
Natural polymers make up most of the cellular structures that compose living beings, but they are not just found in living organisms. Many plastics and other human-made materials that make modern living possible are synthetic polymers composed of monomers that are made and conjoined in laboratories...
Synthetic Fibres - Synthetic fibre is man-made fibres, most of them are prepared from raw material (petroleum) called petrochemicals. Click here to study the advantages of synthetic fibres along with its disadvantages.
Biopolymers - Biopolymers are polymeric biomolecules which contain monomeric units that are covalently bonded to form larger molecules. Biopolymers are polymers that are produced by living organisms. Biopolymers are composed of monomeric units
Introduction to natural Fibres Rayon and Nylon Plastic and The Environment Synthetic Fibres Definition Synthetic fibresare man-made fibres. The raw material used for making these fibres is petroleum. Hence another name for these fibres is‘petrochemicals’. Small units called‘polymers’make up these ...