Draw the structure of representative unit of polyurethane. Concept introduction: We can make polyurethanes with the help of two monomers diols and isocyanates . Polyurethanes are used as hard varnish and furniture coatings to soft flexible pillows. This type of reaction can be carried out with the help of nucleophilic substitution reaction. In this reaction, a nucleophile (negatively charged molecule) attacks on the monomer unit to give rise to a reactive intermediate. This intermediate again reacts with the monomer unit to give rise to the final polymeric product and releases nucleophile.

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Answer 1

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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 31.SE, Problem 17MP

Interpretation Introduction

Interpretation:

Draw the structure of representative unit of polyurethane.

Concept introduction:

We can make polyurethanes with the help of two monomers diols and isocyanates. Polyurethanes are used as hard varnish and furniture coatings to soft flexible pillows. This type of reaction can be carried out with the help of nucleophilic substitution reaction.

In this reaction, a nucleophile (negatively charged molecule) attacks on the monomer unit to give rise to a reactive intermediate. This intermediate again reacts with the monomer unit to give rise to the final polymeric product and releases nucleophile.

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There are 48 pairs of students in the following table. Each pair has quantitatively determined the mass of taurine in a 250 mL can of the popular energy drink marketed as “Munster” using High Performance Liquid Chromatography (HPLC). The class results are presented below: QUESTION: Summarise and report these results including an indication of measurement uncertainty. In both calculation samples calculate if an outlier is present, max value, number of samples, mean, standard deviation, g (suspect), g (critical) and t (critical). Mass of Taurine (mg) Mass of Taurine (mg) (Table continued) 152.01 152.23 151.87 151.45 154.11 152.64 152.98 153.24 152.88 151.45 153.49 152.48 150.68 152.33 151.52 153.63 152.48 151.68 153.17 153.40 153.77 153.67 152.34 153.16 152.57 153.02 152.86 151.50 151.23 152.57 152.72 151.54 146.47 152.38 152.44 152.54 152.53 152.54 151.32…

Indicate the rate expressions for reactions that have order 0, 1, and 2.

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 31.SE, Problem 17MP

Interpretation Introduction

Interpretation:

Draw the structure of representative unit of polyurethane.

Concept introduction:

We can make polyurethanes with the help of two monomers diols and isocyanates. Polyurethanes are used as hard varnish and furniture coatings to soft flexible pillows. This type of reaction can be carried out with the help of nucleophilic substitution reaction.

In this reaction, a nucleophile (negatively charged molecule) attacks on the monomer unit to give rise to a reactive intermediate. This intermediate again reacts with the monomer unit to give rise to the final polymeric product and releases nucleophile.

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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 31.SE, Problem 17MP

Interpretation Introduction

Interpretation:

Draw the structure of representative unit of polyurethane.

Concept introduction:

We can make polyurethanes with the help of two monomers diols and isocyanates. Polyurethanes are used as hard varnish and furniture coatings to soft flexible pillows. This type of reaction can be carried out with the help of nucleophilic substitution reaction.

In this reaction, a nucleophile (negatively charged molecule) attacks on the monomer unit to give rise to a reactive intermediate. This intermediate again reacts with the monomer unit to give rise to the final polymeric product and releases nucleophile.

Expert Solution & Answer

Want to see the full answer?

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 31.SE, Problem 17MP

Interpretation Introduction