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Chapter 15: Problem 38

Cite five important characteristics for polymers that are to be used in thin- film applications.

Short Answer

Expert verified
Answer: The five important characteristics for polymers that are suitable for thin-film applications are thermal stability, mechanical properties, chemical resistance, optical properties, and processability.

Step by step solution

01

Define Thin-film Applications

Thin-film applications refer to the use of very thin layers (usually on the order of nanometers to micrometers) of a material, in this case, polymers, for various purposes. These applications can be found in industries such as electronics, solar cells, surface treatment, and optics.
02

Identify the First Characteristic - Thermal Stability

Polymers used in thin-film applications should have good thermal stability. This means that they should be able to withstand high temperature processing and use conditions without degrading or losing their desirable properties.
03

Identify the Second Characteristic - Mechanical Properties

The mechanical properties of the polymer, such as flexibility, strength, and durability, are crucial for thin-film applications. These properties ensure that the polymer can withstand the mechanical stress and strains that it may experience during fabrication, processing, and use.
04

Identify the Third Characteristic - Chemical Resistance

Polymers used in thin-film applications should show good chemical resistance to various chemicals and environmental factors, such as solvents, acids, and alkalis. This is critical to preserve the longevity and performance of the thin-film polymer in harsh conditions.
05

Identify the Fourth Characteristic - Optical Properties

In some thin-film applications, specific optical properties like transparency, refractive index, and color could be essential. Therefore, the polymers should possess desirable optical properties to meet the requirements of such applications.
06

Identify the Fifth Characteristic - Processability

Polymers suitable for thin-film applications should have good processability, allowing them to be easily deposited, patterned, and fabricated using various thin-film manufacturing techniques such as spin coating, spray coating, and plasma deposition. In summary, the five important characteristics for polymers that are to be used in thin-film applications are thermal stability, mechanical properties, chemical resistance, optical properties, and processability.

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Most popular questions from this chapter

The vulcanization of polyisoprene is accomplished with sulfur atoms according to Equation 15.4. If \(57 \mathrm{wt} \%\) sulfur is combined with polyisoprene, how many crosslinks will be associated with each isoprene repeat unit if it is assumed that, on the average, six sulfur atoms participate in each crosslink?

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