To propose the structure of the final polymerized product of the urea and formaldehyde. Concept introduction: Urea-formaldehyde polymer is also known as urea-methanal . It is non transparent, thermosetting resin or polymer. Its monomer units are urea and formaldehyde. Urea-formaldehyde polymer is generally used as an adhesive, wooden carving, electrical components and making paints etc. Properties like high heat resistant, less water absorption, mould shrinking makes it a better adhesive in nature. This types of reaction occurs according to the condensation polymerization mechanism. Condensation polymerization mechanism involves the removal of small molecules to give rise to final polymerized product.

Question

Want to see the full answer?

Answer 1

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 34AP

Interpretation Introduction

Interpretation:

To propose the structure of the final polymerized product of the urea and formaldehyde.

Concept introduction:

Urea-formaldehyde polymer is also known as urea-methanal. It is non transparent, thermosetting resin or polymer. Its monomer units are urea and formaldehyde. Urea-formaldehyde polymer is generally used as an adhesive, wooden carving, electrical components and making paints etc.

Properties like high heat resistant, less water absorption, mould shrinking makes it a better adhesive in nature.

This types of reaction occurs according to the condensation polymerization mechanism. Condensation polymerization mechanism involves the removal of small molecules to give rise to final polymerized product.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

The reaction of urea [(NH2)2C=O] and formaldehyde (CH2=O) forms a highly cross-linked polymer used in foams. Suggest a structure for this polymer.

The reaction of urea [(NH2)2C = O] and formaldehyde (CH2 = O) forms a highly cross-linked polymer used in foams. Suggest a structure for this polymer. [Hint: Examine the structures of Bakelite (Figure 30.7) and Melmac (Problem 30.58).]Figure 30.7: The synthesis of Bakelite from phenol and formaldehyde

A boron-siloxane cross linked polymer was formed from the reaction between dichlorodimethylsilane in diethyl ether with deionised water. Which was neutralised with sodium bicarbonate solution before being turned into a polymer upon the addition of boric acid. What is the structure of the polymer synthesised and what is the molecular weight of one monomer unit of this boron-siloxane cross linked polymer?

Answer 2

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 34AP

Interpretation Introduction

Interpretation:

To propose the structure of the final polymerized product of the urea and formaldehyde.

Concept introduction:

Urea-formaldehyde polymer is also known as urea-methanal. It is non transparent, thermosetting resin or polymer. Its monomer units are urea and formaldehyde. Urea-formaldehyde polymer is generally used as an adhesive, wooden carving, electrical components and making paints etc.

Properties like high heat resistant, less water absorption, mould shrinking makes it a better adhesive in nature.

This types of reaction occurs according to the condensation polymerization mechanism. Condensation polymerization mechanism involves the removal of small molecules to give rise to final polymerized product.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

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 34AP

Interpretation Introduction

Interpretation:

To propose the structure of the final polymerized product of the urea and formaldehyde.

Concept introduction:

Urea-formaldehyde polymer is also known as urea-methanal. It is non transparent, thermosetting resin or polymer. Its monomer units are urea and formaldehyde. Urea-formaldehyde polymer is generally used as an adhesive, wooden carving, electrical components and making paints etc.

Properties like high heat resistant, less water absorption, mould shrinking makes it a better adhesive in nature.

This types of reaction occurs according to the condensation polymerization mechanism. Condensation polymerization mechanism involves the removal of small molecules to give rise to final polymerized product.

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 34AP

Interpretation Introduction