Important synthetic rubbers: terylene, Chemistry

Assignment Help:

Terylene:

Preparation:  terylene is prepared by a polyconensation reaction between a dicarboxylic acid and a idol.

Properties: a fully aliphatic polyester are not of much industrial importance because of their low melting points (50_80 degree c) introducing aromatic rings into the polyester chain a remarkable rise in the melting point of polyesters is produced due to resistant to heat and moisture and unattached by many chemicals.

(1)                         It has good mechanical strength up to 175degree c.

(2)                         Fibbers of Terylene have wrinkle resistance and high stretch resistance.

USES OF TERYLENE:

(1)                         Extensively used to make textile fibres.

(2)                         Used in the making of films which are used in the manufacture of magnetic recording tapes aluminised sheets for certain applications?

 

 


Related Discussions:- Important synthetic rubbers: terylene

Explain the oxidation product of the respiratory chain, Explain the oxidati...

Explain the oxidation product of the respiratory chain? How is the free energy kept at the inner mitochondrial membrane independently of chemical bonds, and how is it used for

Standard electrode potential, why the hydrogen gases are used platinium pla...

why the hydrogen gases are used platinium plate in she

Determine temperature of flue gases, A heat recovery device involves transf...

A heat recovery device involves transferring energy from hot flue gases passing counter currently through an annular region to pressurized water flowing through the inner tube of t

Hess Law, What was the calculated ?H value obtained for the reaction NH3 + ...

What was the calculated ?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure? The thermodynamic data is: •?H°f for NH3 (aq) = -

Define the phenomenon resonance, When a molecule is shown by two or more ne...

When a molecule is shown by two or more nearly equal structures, which vary in the arrangement of electrons, then the molecule is said to exhibit resonance.

What mass of sodium chloride is produced in the reaction, A reaction among ...

A reaction among sodium hydroxide and hydrogen chloride gas produces sodium chloride and water and a reaction of 22.85g of sodium hydroxide with 20.82g of hydrogen chloride gives o

Number of electrons in -conh2 is, Number of electrons in -CONH 2   is: ...

Number of electrons in -CONH 2   is: (1) 22        (2) 24      (3) 20   (4)28 Ans:24

Estimate the molar mass of protein, Q. An aqueous solution of the protein b...

Q. An aqueous solution of the protein bovine serum albumin, containing 2:00 x 10 -2 g of protein per cubic centimeter, has an osmotic pressure of 8.1 x 10 -3 bar at 0 C. Estim

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd