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

Sum of its enthalpy, What is basically Gibb''s free energy change? Ans) Th...

What is basically Gibb''s free energy change? Ans) The energy associated with a chemical reaction that can be used to do work.  The free energy of a system is the sum of its entha

Knocking - characteristics of hydrocarbons, Knocking - Characteristics of h...

Knocking - Characteristics of hydrocarbons The metallic sound throughout working of an internal combustion engine is known as knocking.  "As much the compression greater wil

Electro dialysis for brackish water, Q.   What are ion selective membranes ...

Q.   What are ion selective membranes used in electro dialysis of brackish water. Give examples. Ans. Electro dialysis for brackish water: The ion selective membranes are use

Water chemistry, explain the scale and sludge formation?

explain the scale and sludge formation?

Conduct a descriptive analysis of bread, Q. Conduct a descriptive analysis ...

Q. Conduct a descriptive analysis of bread? To sensory evaluate the slice of white bread on the basis of appearance, taste, texture and flavour. • judge the product quality

Solubility, A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34...

A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34.0 mL of 0.140 M Ca(NO3)2. (a) What mass, in grams, of calcium phosphate will be formed? What will be the concentrati

Complexometric titrations - types of titrations, Complexometric Titrations ...

Complexometric Titrations - Types of titrations A titration, where an dissolved complex is formed at the equivalence point, is termed as complexometric titration. These types

Physical chemisty, Calculate the ratio of d number of molecules in two ener...

Calculate the ratio of d number of molecules in two energy levels at 27''c given E2=9.75x10"-13erg/mol E1=6.95X10"-13erg/mol g1=2 g2=3

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