Two types of monomers that are used to produce polyurethane has to be given. Concept Introduction: When alcohol reacts with isocyanate, urethane is obtained. Urethane is a hydrocarbon derivative. This contains a carbonyl group that is bonded to − OR group and a − NHR group. If the monomer considered is a diisocyanate and dialcohol, polymerization reaction takes place resulting in the formation of polyurethane. Polyurethanes have the structures of both polyester and polyamides.

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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 17.154EP

Interpretation Introduction

Interpretation:

Two types of monomers that are used to produce polyurethane has to be given.

Concept Introduction:

When alcohol reacts with isocyanate, urethane is obtained. Urethane is a hydrocarbon derivative. This contains a carbonyl group that is bonded to −OR group and a −NHR group.

If the monomer considered is a diisocyanate and dialcohol, polymerization reaction takes place resulting in the formation of polyurethane. Polyurethanes have the structures of both polyester and polyamides.

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LTS Solid: AT=Te-Ti Trial 1 Trial 2 Trial 3 Average ΔΗ Mass water, g 24.096 23.976 23.975 Moles of solid, mol 0.01763 001767 0101781 Temp. change, °C 2.9°C 11700 2.0°C Heat of reaction, J -292.37J -170.473 -193.26J AH, kJ/mole 16.58K 9.647 kJ 10.85 kr 16.58K59.64701 KJ mol 12.35k Minimum AS, J/mol K 41.582 mol-k Remember: q = mCsAT (m = mass of water, Cs=4.184J/g°C) & qsin =-qrxn & Show your calculations for: AH in J and then in kJ/mole for Trial 1: qa (24.0969)(4.1845/g) (-2.9°C)=-292.37J qsin = qrxn = 292.35 292.37J AH in J = 292.375 0.2923kJ 0.01763m01 =1.65×107 AH in kJ/mol = = 16.58K 0.01763mol mol qrx Minimum AS in J/mol K (Hint: use the average initial temperature of the three trials, con Kelvin.) AS=AHIT (1.65×10(9.64×103) + (1.0 Jimai

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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 17.154EP

Interpretation Introduction

Interpretation:

Two types of monomers that are used to produce polyurethane has to be given.

Concept Introduction:

When alcohol reacts with isocyanate, urethane is obtained. Urethane is a hydrocarbon derivative. This contains a carbonyl group that is bonded to −OR group and a −NHR group.

If the monomer considered is a diisocyanate and dialcohol, polymerization reaction takes place resulting in the formation of polyurethane. Polyurethanes have the structures of both polyester and polyamides.

Expert Solution & Answer

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Check out a sample textbook solution

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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 17.154EP

Interpretation Introduction

Interpretation:

Two types of monomers that are used to produce polyurethane has to be given.

Concept Introduction:

When alcohol reacts with isocyanate, urethane is obtained. Urethane is a hydrocarbon derivative. This contains a carbonyl group that is bonded to −OR group and a −NHR group.

If the monomer considered is a diisocyanate and dialcohol, polymerization reaction takes place resulting in the formation of polyurethane. Polyurethanes have the structures of both polyester and polyamides.

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 17, Problem 17.154EP

Interpretation Introduction