uses of condensation polymers

Glyptal is a general name of all polymers obtained by condensation of di-basic acids, and polyhydric alcohols. Condensation polymers have their advantages and disadvantages. Polyesters are an important class of commercial polymers, as are polyamides (nylon). Polyethylene is considered to be as one of the simplest polymer, it has ethene or ethylene as the monomer unit whereas the linear polymer is known as the high density polyethylene-HDPE. Polymers are those which consists of repeated structural units known as monomers. Condensation polymers, unlike addition polymers may be biodegradable. Some common examples of condensation polymers are:Formaldehyde resins These include polymers like Bakelite and Melamine polymers. b. addition and condensation polymerization. Organic Chemistry > Polymers > Nylon. 31. Non- biodegradable: cannot be broken down by the action of bacteria or other micro-organisms. The two most common types of condensation polymers are polyesters and polyamides which involve the formation of an ester linkage or an amide linkage. Condensation Polymers samabrhms11 2020-11-25T15:30:53+00:00 Specification Point 4.49C (Paper 2C Only): Understand how to write the structural and displayed formula of a polyester, showing the repeat unit, given the formulae of the monomers from which it is formed including the reaction of Ethanedioic acid and Ethanediol Both addition polymers and condensation polymers lose some atoms from the original monomers when the polymer is formed. Products from Oil. This is often water from two different monomers, a H from one monomer, and an OH from the other, the 'spare bonds' then link up to form … Based on polymerization mechanisms: 1.Chain polymerized polymer: Involves initiation, propagation, and termination. This page contains materials for the polymers class session on synthesis, properties and applications. The … The best way to remember the information in this chapter is to get a pen and paper and write down your answers before clicking on the Answer link which will take you to the correct page.. You may have to read through some of the page before you find the answer. Polymers can be synthesized through two types of polymerization reactions i.e. Both addition polymers and condensation polymers contain all of the atoms of the monomers. Characteristics and uses. d. The reaction can be used to illustrate: * polymerisation * chemical change In condensation polymerization, the relative molecular mass of a condensation polymer is not an exact multiple of the monomers as in an addition polymer. The simplest glyptal is poly (ethylene glycol phthalate) which is obtained by the condensation of ethylene glycol and phthalic acid. Nylon-66, Polyester, Bakelite etc. Condensation polymers are formed via condensation polymerisation. Additional Polymers are formed when many identical monomers join together to form a polymer (these polymers can be referred to as A-A polymers), for example: ; Condensation polymers are formed when lots of smaller molecules (monomers) join together to form a larger molecule (polymer), resulting in the loss … These identical structures, we understand as a unit made up of two or more molecules, join together to form a long chain. Condensation polymers are made from monomers that have two different groups of atoms which can join together to form, for example, ester or amide links. Polymers can be classified as organic, inorganic, synthetic and mixture of organic-inorganic polymers. Condensation Polymerization. uses of polymers, Some common uses of Synthetic Polymers include plastic containers of all shapes and sizes. These are three dimensional cross-linked polymers. This is a condensation polymer made of two parent monomers, a di-amine and a di-acid chloride. Condensation polymers form more slowly than addition polymers, often requiring heat, and they are generally lower in molecular weight. a. The first truly synthetic plastic was bakelite, developed by … With condensation polymers the monomers can be different. In these cases the reactor must supply heat in order to maintain a practical reaction rate. In this post, we model and compare the structure, properties and uses of condensation polymers, for example: Polyesters Nylon and; Terylene; Nylon is a Polyamide while Terylene is a Polyester. (ii) Condensation polymers : They are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. Polymers are long chains of repeating units known as monomers. Polymers are macromolecules made up of repeating units called monomers. Planned lesson on condensation polymers. In basic terms, a polymer is a long-chain molecule that is composed of a large number of repeating units of identical structure. We use synthetic polymers in our everyday lives from clothing, storage, from construction materials to … This website and its content is subject to our Terms and Conditions. Among the earliest were semi-synthetic polymers, which are natural polymers modified in some way. Model and compare the structure, properties and uses of condensation polymers. The word “Polymer” is derived from two Greek words, ‘Poly’ that means many (numerous) and ‘Mer’ which means units. The peptide or ester bonds between monomers can be hydrolysed by acid catalysts or bacterial enzymes breaking the polymer chain into smaller pieces. Applications of Polymers. In chemistry of industrial polymers: Industrial polymerization methods. Polymers. Polymers uses up non-renewable resources (e.g: ethane is obtained from crude oil) Disposal problems, because polymers are non-biodegradable, so it uses up lands. An addition polymer is a polymer that forms by simple linking of monomers without the co-generation of other products. Condensation polymerisation involves linking lots of small monomer molecules together by eliminating a small molecule. The first 26 chapters of this volume are devoted to process improve­ ments and the kinetics of addition and condensation polymerization of common monomers. If the answer you have written is not right, change it to the Revision Questions - Polymers. Condensation polymer derived from condensation reaction of monomers containing terminal carboxylic acid and amine groups. Polymers exist as amorphous or crystalline solids. Also when polymers are burned toxic gases are released. H2O or HCl. The most commonly known condensation polymers are proteins, fabrics such as nylon, silk, or polyester. The two most important condensation polymers are. "In this video, we'll look at a practice question to see how we can predict the monomers of a condensation polymer. These are formed by the condensation of two or more monomers with the elimination of simple molecules like H2O, NH3, ROH, etc. Condensation Polymers (Nylon 6,6, Polyester) This is part of the HSC Chemistry course under the topic of Polymers. Additionally, each monomer must have at least two reactive sites, which usually are two functional groups therefore the condensation polymer consists of functional groups instead of double bonds (Shukla, 2018). Condensation polymers are basically polymers formed through a condensation reaction, where the monomers react and a polymer is produced, and a small molecule such as water is also produced as a by-product of the reaction. Useful properties of polymers Explain the term co-polymerization and give two examples of copolymers and the reactions for their preparations. Condensation Polymers . 5. (ii) Glyptic or Alkyd Resin: Glyptal is a common name of all polymers prepared by condensation of di-basic acids, and polyhydric alcohols. One advantage is that polymers like Kevlar and phenol-methanal plastics are ridiculously strong and durable, making them ideal for their uses – Kevlar in bullet-proof material, and phenol-methanal plastics as vinyl. Condensation Polymers. The terminal functional groups on a chain remain active, so that groups of shorter chains combine into longer chains in the late stages of polymerization. Polymer testing and consultancy for plastics, additives with applications including aerospace, automotive, electronics, packaging and medical devices. (i) Phenol formaldehyde resins (Bakelite): The simplest glyptal is poly (ethylene glycol phthalate) which is obtained by the condensation of ethylene glycol and pthlatic acid. This is because there is a loss in mass during the condensation process. The first plastic (Celluloid) and the first artificial fiber (Rayon) were produced from cellulose. Synthetic polymers are those which are human-made polymers. uses which include fabrics, surface coating or adhesives, structural, auto­ motive, packaging, electrical,, glazing, photographic, thermal, medicinal, and other applications. Condensation polymers form: when bifunctional monomers react to form a long chain polymer molecule; small molecules, such as water, are eliminated during the reaction; Polyesters, polyamides, proteins and polysaccharides such as cellulose, are all examples of condensation polymers. Testing and consultancy for plastics, additives with applications including aerospace, automotive, electronics packaging. Devoted to process improve­ ments and the first plastic ( Celluloid ) and the reactions for preparations. Known as monomers: 1.Chain polymerized polymer: Involves initiation, propagation, and they are lightweight economically. Are devoted to process improve­ ments and the first 26 chapters of this volume are devoted process! 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