Provide mechanisms (with arrows) for the formation of Nylon-6,10 from hexamethlenediamine and sebacoyl chloride , and po...
Provide mechanisms (with arrows) for the formation of Nylon-6,10 from hexamethlenediamine and sebacoyl chloride , and polystyrene from 1,2-dichloroethane and sulfuric acid. What is the role of the aqueous base in the nylon synthesis? What is the role of sulfuric acid in the polystyrene synthesis?
Homework Answers
The Mechanism for formation of Nylon 6,10 is as follows:
'n' moles of hexamethylene diamine reacts with 'n' moles of sebacoyl chloride to form Nylon 6,10 and n moles of HCl.
Aqueous base is used because it will dissolve the hexamethylene diamine to form an aqueous solution. The sebacoyl chloride is dissolved in organic solvent.
Formation of polystyrene can be explained by the following reaction scheme:
Sulphuric acid is used to initiate the polymerization
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Provide mechanisms (with arrows) for the formation of Nylon-6,10 from hexamethlenediamine and sebacoyl chloride , and po...
Provide mechanisms (with arrows) for the formation of Nylon-6,10 and polystyrene from their constituted monomers. What...
Provide mechanisms (with arrows) for the formation of Nylon-6,10 and polystyrene from their constituted monomers. What is the role of the aqueous base in the nylon synthesis? What is the role of sulfuric acid in the polystyrene synthesis?
sms (with arrows) for the formation of Nylon-6,10 and polystyrene from their constituent monomers. What is...
sms (with arrows) for the formation of Nylon-6,10 and polystyrene from their constituent monomers. What is the role of the aqueous base nomers. What is the role of the aqueous base in the nylon synthesis? What is the role of the sulfuric acid in the polystyrene synthesis
In the preparation of nylon by interfacial polymerization, sebacoyl chloride is synthesized from decanedioc acid and...
In the preparation of nylon by interfacial polymerization, sebacoyl chloride is synthesized from decanedioc acid and thionyl chloride. What volume of hydrogen chloride is produced in this reaction? What volume of sulfur dioxide is produced?
Provide a general mechanism (with arrows) for the formation of Bakelite from phenol and formaldehyde (CH2O)...
Provide a general mechanism (with arrows) for the formation of Bakelite from phenol and formaldehyde (CH2O) in the presence of acid. In what way is this polymer different from nylon and polystyrene? How is it manifested in its physical properties?
5. There is a large decrease in the bulk of the rope of Nylon-6,10 upon drying....
5. There is a large decrease in the bulk of the rope of Nylon-6,10 upon drying. Explain this observation. 6. Using full structural formulas, draw a typical portion of a Nylon-6,6 molecule; that is, expand a portion of the formula given in Equation 22.15. Show at least two hexanedioic acid units and two 1,6-hexanediamine units. 7. Draw formulas that illustrate the hydrogen bonding that may exist between two polyamide molecules after fibers have been "cold-drawn." 8. Nylons undergo depolymerization when...
2. Using curved arrows to symbolize the flow of electrons, write the stepwise mechanism for the...
2. Using curved arrows to symbolize the flow of electrons, write the stepwise mechanism for the condensation reaction between decandioyl dichloride and 1,6-hexanediamine. 3. Write an equation for the formation of the salt produced from one molecule of hexanedioic acid and two molecules of 1,6-hexanediamine. 4. Why is sodium carbonate used in the reaction to prepare Nylon-6,10? 5. There is a large decrease in the bulk of the rope of Nylon-6,10 upon drying. Explain this observation. 6. Using full structural...
Can you answer these questions based on the Synthesis of Nylon-6,6 using adipoyl chloride and 1,6-hexanediamine...
Can you answer these questions based on the Synthesis of Nylon-6,6 using adipoyl chloride and 1,6-hexanediamine Discuss the polycondensation reaction. Why would water interfere with it? In case experiment failed-explanation is expected. Why it failed? What could be improved. Explain molecular structure vs signal relationship . In your discussion consider the following concepts: polycondensation, functional groups, fibril formation and stabilization (interchain molecular itneractions) , reaction yield and the role of NaOH solution used in the reaction
what is the theoretical yield for this experiment? ORGANIC POLYMERS: THE SYNTHESIS OF NYLON Nylon's outstanding...
what is the theoretical yield for this experiment?
ORGANIC POLYMERS: THE SYNTHESIS OF NYLON Nylon's outstanding characteristic in the textile industry is its versatility. It can be made strong enough to stand up under the punishment tire cords must endure, fine enough for sheer, high fashion hosiery, and light enough for parachute cloth and backpacker's tents. Nylon is used both alone and in blends with other fibers, where its chief contributions are strength and abrasion resistance. Nylon washes easily, dries...
Provide the elimination mechanism (with arrows) of the formation of cis-2'-bromostyrene from 2,3-dibromo-3-phenylpro...
Provide the elimination mechanism (with arrows) of the formation of cis-2'-bromostyrene from 2,3-dibromo-3-phenylpropanoic acid in the presence of K2CO3 and the solvent acetone. Also provide the mechanism of KMNO4 on a TLC (thin later chromatography) plate and why colour change occurs
For the dehydration shown, use curved arrows to show the formation of the carbocation intermediate in...
For the dehydration shown, use curved arrows to show the formation of the carbocation intermediate in the presence of sulfuric acid H, SO4, then draw the structure of the major product of the elimination. ОН H2SO4 - product Step 1: Use curved arrows to complete the protonation mechanism of the alcohol. Step 2: Use a curved arrow to show the formation the carbocation intermediate. Note: HSOZ is formed from step 1, but not shown. Select Draw Rings More Erase Select...
sms (with arrows) for the formation of Nylon-6,10 and polystyrene from their constituent monomers. What is the role of the aqueous base nomers. What is the role of the aqueous base in the nylon synthesis? What is the role of the sulfuric acid in the polystyrene synthesis
5. There is a large decrease in the bulk of the rope of Nylon-6,10 upon drying. Explain this observation. 6. Using full structural formulas, draw a typical portion of a Nylon-6,6 molecule; that is, expand a portion of the formula given in Equation 22.15. Show at least two hexanedioic acid units and two 1,6-hexanediamine units. 7. Draw formulas that illustrate the hydrogen bonding that may exist between two polyamide molecules after fibers have been "cold-drawn." 8. Nylons undergo depolymerization when...
2. Using curved arrows to symbolize the flow of electrons, write the stepwise mechanism for the condensation reaction between decandioyl dichloride and 1,6-hexanediamine. 3. Write an equation for the formation of the salt produced from one molecule of hexanedioic acid and two molecules of 1,6-hexanediamine. 4. Why is sodium carbonate used in the reaction to prepare Nylon-6,10? 5. There is a large decrease in the bulk of the rope of Nylon-6,10 upon drying. Explain this observation. 6. Using full structural...
what is the theoretical yield for this experiment?
ORGANIC POLYMERS: THE SYNTHESIS OF NYLON Nylon's outstanding characteristic in the textile industry is its versatility. It can be made strong enough to stand up under the punishment tire cords must endure, fine enough for sheer, high fashion hosiery, and light enough for parachute cloth and backpacker's tents. Nylon is used both alone and in blends with other fibers, where its chief contributions are strength and abrasion resistance. Nylon washes easily, dries...
For the dehydration shown, use curved arrows to show the formation of the carbocation intermediate in the presence of sulfuric acid H, SO4, then draw the structure of the major product of the elimination. ОН H2SO4 - product Step 1: Use curved arrows to complete the protonation mechanism of the alcohol. Step 2: Use a curved arrow to show the formation the carbocation intermediate. Note: HSOZ is formed from step 1, but not shown. Select Draw Rings More Erase Select...
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