Problem 51 - Chemistry Central Science

Question

Neoprene is a polymer of chlorobu tadiene. The polymer can be used to form flexible tubing that is resistant to chemical attack from a variety of chemical reagents. Suppose it is proposed to use neoprene tubing as a coating for the wires running to the heart from an implanted pacemaker. What questions would you ask to determine whether it might be suitable for such an application?

Step-by-Step Solution

Answer

2. What are the mechanical properties of neoprene tubing (tensile strength, elasticity, durability)? 3. What are the electrical properties of neoprene tubing (dielectric strength, electrical conductivity)? 4. What is the chemical resistance of neoprene tubing to various chemical reagents in the body and during medical procedures? 5. Can neoprene tubing be effectively sterilized without degrading its properties? 6. How easy is it to manufacture and process neoprene tubing for this specific application and customize it for size, shape, and thickness requirements?

Step 1: Question 1: Biocompatibility

Is neoprene biocompatible? Since the tubing will be in direct contact with the body and will be implanted, we need to know if it is safe to be used inside the body and whether it will cause any adverse reactions or inflammation.

Step 2: Question 2: Mechanical Properties

What are the mechanical properties of neoprene tubing, such as tensile strength, elasticity, and durability? As the tubing will be subjected to constant motion inside the body, it must be able to withstand these forces without breaking or deforming.

Step 3: Question 3: Electrical Properties

What are the electrical properties of neoprene tubing, such as its dielectric strength and electrical conductivity? The tubing should have appropriate electrical properties to effectively insulate the wires and ensure the pacemaker functions effectively without any interference.

Step 4: Question 4: Chemical Resistance

What is the chemical resistance of neoprene tubing to various chemical reagents that might be present inside the body or potentially used during medical procedures? The tubing should be resistant to chemical attack to maintain its structural integrity and avoid any adverse reactions with other substances.

Step 5: Question 5: Sterilization Capability

Can neoprene tubing be effectively sterilized without degrading its properties? The materials used in a medical implant must be able to be adequately sterilized to prevent infections and complications.

Step 6: Question 6: Manufacturing and Processing

How easy is it to manufacture and process neoprene tubing for this specific application? Can it be customized to fit the specific requirements, such as size, shape, and thickness? It's important to assess the feasibility of producing the needed tubing and ensuring it can be tailored to the desired specifications. By asking and analyzing the answers to these questions, we can determine whether neoprene tubing is suitable for use as a coating for wires running to the heart from an implanted pacemaker.