Dacron (Terylene) is obtained by the condensation polymerization of ethylene glycol (1,2-Ethanediol) and dimethylterephthalate. b. Monomers are heated at 503 K. The catalyst used is a mixture of zinc acetate and antimony trioxide..
Accordingly, what is the formula of terylene?
Terylene:- It is a polymer of ehtylene glycol (ethane-1,2-diol) and terephthalic acid(benzene-1,4-dicarboxylic acid). It is obtained by heating a mixture of ehtylene glycol and terephthalic acid at 420K to 460K in the presence of zinc acetate-antimony trioxide catalyst. It is known as terylene or dacron.
is Terylene an addition polymer? Terylene is a CONDENSATION polymer, not an addition polymer. The class of polyesters are formed by esterification reaction of a di-carboxylic acid with a diol. Addition polymerization only adds on two or more molecules, without losing any part of the molecules from the reaction.
Similarly, you may ask, what happens when a polyester is formed?
A polyester is made by a reaction involving an acid with two -COOH groups, and an alcohol with two -OH groups. Now imagine lining these up alternately and making esters with each acid group and each alcohol group, losing a molecule of water every time an ester linkage is made.
How do you make polyester?
1 To form polyester, dimethyl terephthalate is first reacted with ethylene glycol in the presence of a catalyst at a temperature of 302-410°F (150-210°C). 2 The resulting chemical, a monomer (single, non-repeating molecule) alcohol, is combined with terephthalic acid and raised to a temperature of 472°F (280°C).
Related Question Answers
What is terylene used for?
Terylene is extensively used in textile industry to make hard wear clothes like sarees , taoestry and dress material. Terylene is made by a process of polymerizing ethylene glycol and terepthalic acid. It is also mixed with natural fibre like cotton and wool to make more variety of clothes.What is the repeating unit of terylene?
Terelene is a type of polyester and the repeating unit of a polyester is ESTER.What is terylene made from?
Terylene is a synthetic polyester fibre produced by polymerizing ethylene glycol and terephthelic acid which is obtained from petroleum. The fibre was first created in 1941 by chemist J R WHINFIELD of Accrington who sold the patent rights to the chemical company ICI. In America, it is produced as the name “Dacron”.What is the chemical name of polyester?
polyethylene terephthalate
How are polyamides formed?
All polyamides are made by the formation of an amide function to link two molecules of monomer together. The monomers can be amides themselves (usually in the form of a cyclic lactam such as caprolactam), α,ω-amino acids or a stoichiometric mixture of a diamine and a diacid.What are the properties of terylene?
Properties of Terylene: Terylene is a very strong fibre and will suffer very little loss in strength when wet. It is elastic in nature and posses the property of resist creasing. IT can be set into permanent pleats when subjected to the correct temperature, at the time of manufacturing.What is the repeating unit of polyester?
The repeating unit of polyester is ester.What is the monomer of Bakelite?
Bakelite is a condensation polymer that requires two monomers - phenol and formaldehyde.Is pet the same as polyester?
PET, or polyethylene terephthalate, is the chemical name for polyester. When PET is used for fiber or fabric applications, it is usually referred to as “polyester.” When used for container and packaging applications, it is typically called “PET” or “PET resin.”How many types of polyester are there?
During the ensuing years, several companies became interested in polyester fibers and produced their own versions of the product for different uses. Today, there are two primary types of polyester, PET (polyethylene terephthalate) and PCDT (poly-1, 4-cyclohexylene-dimethylene terephthalate).What is the monomer of polyester?
Polyester is made up of the monomer which is a combination of Ethane-1,2-diol and benzene-1,4-dicarboxylic acid (terephthalic acid). The polyesters have a wide number of uses depending upon the orientation of the different monomers present in the polymer.Why is elastane used in clothing?
The use of elastane One of the main applications of elastane is clothing. Elastane is especially used or sportswear and underwear because these garments have to adapt to the body. Often, the elastane is then mixed with other substances such as polyamide. This is to improve wearing comfort.Why do polyesters melt?
Polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties. Synthetic fibers using polyester have high water, wind and environmental resistance compared to plant-derived fibers. They are less fire-resistant and can melt when ignited.Is polyester flammable?
Nylon, polyester, acrylic and olefin are not highly flammable. Once ignited, however, the melting of the fiber can cause serious burns. Modacrylic has inherent flame retardant properties.Is polyester water resistant?
However, polyester is considered water-resistant. Polyester is also considered “everyday waterproof,” which means although it's not 100% waterproof, it is protective enough for most everyday situations, such as being out in rain or snow, but not completely submerged under water for a prolonged period of time.Why is Terylene a popular polyester?
Terylene is a very strong fibre and will suffer very little loss in strength when wet. It is elastic in nature and posses the property of resist creasing. IT can be set into permanent pleats when subjected to the correct temperature, at the time of manufacturing.What does polyester feel like?
Feel and wear Polyester is lightweight and has a slightly silkier feel to it than cotton does. For those with extremely sensitive skin, polyester may cause a small irritation, but it isn't as common when polyester is blended with other fabrics.Is Bakelite a polyester?
Bakelite is polyoxybenzylmethyleneglycolanhydride. Polyester is a polymer made of number of ester units linked to each other. Ester is a monomer unit in polyester. Thus, Polyester made up of many number of ester units.Is Teflon a condensation polymer?
Condensation polymers. Addition polymers include polyethylene, polypropylene, Teflon, Lucite, and rubber. etc. Condensation polymers include nylon, Dacron, and Formica. 
