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.

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

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.

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PTT (polytrimethylene terephthalate) is a polyester formed from 1,3-propanediol (HOCH 2CH 2CH 2OH) by the given reaction. PTT is sold under the trade name Sorona by DuPont. 1,3-Propanediol can now be made from a plant source like corn, rather than from petroleum starting materials. This makes PTT a more environmentally friendly polyester than PET. What is the structure of PTT?

Poly(lactic acid) (PLA) has received much recent attention because the lactic acid monomer [CH3CH(OH)COOH] from which it is made can be obtained from carbohydrates rather than petroleum. This makes PLA a more “environmentally friendly” polyester. Draw the structure of PLA

4. Recycle bottles of plastic are made from а. Реeptides b. Polyamides c. nylon d. polyethylene terephthalate 5. In condensation of polymerization, monomers are involved which contain functional groups of a. same kind b. different kind C. all groups d. compounds 6. Large molecules made up of small monomers are called a. Polymers b. Peptides c. peptones d. monomers d pumbers react together in addition

Answer 2

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

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.

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Answer 3

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

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

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 17, Problem 17.85P

Interpretation Introduction