The structure of polyester PTT that is composed by terephthalic acid and 1,3-propanediol should be determined. Concept Introduction: Polymers are macromolecules which are composed of a large number of small repeating units. These repeating units are known as monomers and the process of formation of polymers from monomer units is known as polymerization . On the basis of type of polymers, polymerization reaction can be two types; addition polymerization and condensation polymerization. The addition polymerization occurs between monomer units with unsaturated bonds between carbon atoms. For example; polymerization of alkene leads to formation of polyalkenes. Condensation polymerization occurs with those monomers which have some functional groups like −OH, -COOH, -NH 2 etc. These polymerizations occur with elimination of small molecules such as H 2 O, CO, and CO 2 etc.

Question

Want to see the full answer?

Answer 1

Question

Chapter 17, Problem 17.85P

Interpretation Introduction

Interpretation:

The structure of polyester PTT that is composed by terephthalic acid and 1,3-propanediol should be determined.

Concept Introduction:

Polymers are macromolecules which are composed of a large number of small repeating units. These repeating units are known as monomers and the process of formation of polymers from monomer units is known as polymerization.

On the basis of type of polymers, polymerization reaction can be two types; addition polymerization and condensation polymerization. The addition polymerization occurs between monomer units with unsaturated bonds between carbon atoms. For example; polymerization of alkene leads to formation of polyalkenes.

Condensation polymerization occurs with those monomers which have some functional groups like −OH, -COOH, -NH₂ etc. These polymerizations occur with elimination of small molecules such as H₂O, CO, and CO₂ etc.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Show work. Don't give Ai generated solution

In the video, we looked at the absorbance of a certain substance and how it varies depending on what wavelength of light we are looking at. Below is a similar scan of a different substance. What color BEST describes how this substance will appear? Absorbance (AU) Violet Blue Green Orange 1.2 1.0- 0.8- 0.6- 0.4- 0.2 0.0 450 500 550 600 650 700 Wavelength (nm) violet indigo blue green yellow orange red Red O Cannot tell from this information In the above graph, what causes -450 nm wavelength of light to have a higher absorbance than light with a -550 nm wavelength? Check all that are true. The distance the light travels is different The different data points are for different substances The concentration is different at different times in the experiment Epsilon (molar absortivity) is different at different wavelengths

5. a. Data were collected for Trial 1 to determine the molar mass of a nonvolatile solid solute when dissolved in cyclo- hexane. Complete the table for the analysis (See Report Sheet). Record calculated values with the correct number of significant figures. B. Freezing Point of Cyclohexane plus Calculation Zone Unknown Solute 2. Mass of cyclohexane (g) 10.14 Part C.4 3. Mass of added solute (g) 0.255 C. Calculations 1. k; for cyclohexane (°C⚫ kg/mol) 20.0 2. Freezing point change, AT, (°C) 3.04 Part C.6 3. Mass of cyclohexane in solution (kg) 4. Moles of solute, total (mol) Show calculation. 5. Mass of solute in solution, total (g) 6. Molar mass of solute (g/mol) Show calculation.