Nylon

Experiment (1) Interfacial Poly-condensation of Hexamethylene Diamine & Sebacoyl Chloride [Nylon Polymerization]

Key Words

Introduction

Procedures

Required Tests

Results/Discussion

References

Key Words

Generate your Abstract and line of thought using the following keywords:
Polymers: thermoplastics; Nylons (Polyamides): Nylon 6-10, preparation, interfacial poly-condensation; Characterization: thermal, mechanical, physicochemical, Properties: Hyper-scopic; Manufacturing: applications

Introduction

Discuss the following topics in correct language and organized flow of ideas within your introduction:
1. History of Nylon
2. Polyamides: Nylonds & Aramids
3. Nylon preparation & manufacturing
4. Chemical preparation of Nylons
5. Nomenclature of Nylons
6. Properties of Nylons: advantages and limitations
7. Applications of Nylons

The introduction should be followed with "Material" section, containing the following properties:
-Chemical Name, Trade Name, Type of Plastic, Density, Tensile Strength , Young's Modulus (E), Impact Strength: Izod, Elongation %, Hardness, Melting Point
-Repeated unit
-General properties of the polymer: advantages and limitations
-Typical applications

Use Kalpakjian, Farag, Smith, lab handouts or other references (MatWeb)to generate the above information

Procedures

Explain the following points within your procedures section:
1. Definition of interfacial poly-condensation
2. The reason for using NaOH and the distilled water
3. The reason for pouring flask A (distilled water+diamine+NaOH) over flask B (CCl₄+sebacoyl chloride) and not the opposite
4. The reason for washing the produced Nylon

Required Tests

1. Physical Testing: physical shape
2. Chemical Testing: effect of chemical attack by different chemicals, using
      a. Strong acid (conc. HCl)
      b. Diluted acid (dil. HCl)
      c. Strong alkali (NaOH)
      d. Water
3. Flammability test

Results/Discussion Answer the following questions in the body of your discussion 1. Define: Hygroscopic material
2. Comment on the physical shape and texture based on the chemical structure of Nylon 6-10
3. Effect of different chemicals based on the chemical structure.
4. Highlight the structure-property relationship

Further References/Images

--The following sites and books contain useful information and images for several articles that we have encountered in this experiment. Make sure to check them.

MatWeb

Kalpakjian, Serope. Manufacturing Process for Engineering Materials. Addison Wesley, 3^rd Ed., 1997.

Smith, William F. . Principles of Materials Science and Engineering. McGraw Hill, 3^rd Ed., 1996.

Back to Main Page