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6. Polylethylene terephthalate) can be synthesized from terephthalic acid and ethylene glycol in the presence of...
Draw the structure of the polymer (the repeating unit) that results when the following molecule is...
Draw the structure of the polymer (the repeating unit) that results when the following molecule is treated with peroxide (ROOR). 5. ROOR Polylethylene terephthalate) can be synthesized from terephthalic acid and ethylene Blycol in the presence of an acid catalyst and heat. 6. acid catalyst heat ??-?- (a) What are the two products of the reaction? (b) What is the acronym of Poly(ethylene terephthalate)?
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol...
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol (CH-OH) is incorporated, but no more ester bonds can be formed. a. Based on the above, what is the extent of reaction, p? b. How does fav determine whether a linear or network polymer is formed as p nears 1? c. Why do you believe the polymer in this reaction will be a gel-network or linear chains? d. What is fivg, the average number...
Polymerization of vinyl chloride produces poly(vinyl chloride) of high molar mass at low monomer conversions, whereas...
Polymerization of vinyl chloride produces poly(vinyl chloride) of high molar mass at low monomer conversions, whereas polymerization of ethylene glycol with terephthalic acid produces poly(ethylene terephthalate) of high molar mass only at very high conversions of the-OH and -CO_2H groups. (See entries (6) and (9) in Table 1.1 for the chemical structures of the monomers and polymers. For each polymerization, explain what the observations indicate in terms of the type of polymerization taking place.
Terephthalic acid (TPA) is synthesized from -xylene (PX) in the process C8H10 +302 – C8H6O4 +2H2O...
Terephthalic acid (TPA) is synthesized from -xylene (PX) in the
process C8H10 +302 – C8H6O4 +2H2O shown below. A fresh feed of pure
liquid PX combines with a recycle stream containing PX and a
solution (S) of a catalyst (a cobalt salt) in a solvent (methanol).
The combined stream, which contains S and PX in a 3:1 mass ratio,
is fed to a reactor in which 90% of the PX is converted to TPA. A
stream of air at 25...
Be sure to answer all parts. Poly(ethylene oxide) can be prepared from ethylene oxide by either...
Be sure to answer all parts. Poly(ethylene oxide) can be prepared from ethylene oxide by either anionic or cationic polymerization methods. Select reaction mechanisms for both processes. Use H3ot as the acid and OH as the base. Select the correct cationic mechanism below. H30* он H30* он НН
Fluorenone can be synthesized from fluorene by reaction with NaOH in the presence of oxygen and...
Fluorenone can be synthesized from fluorene by reaction with NaOH in the presence of oxygen and a catalyst. The first step of the reaction is deprotonation of fluorenone. CH bonds normally have a pK_a in the 50+, but the pK_a of fluorenone is estimated to be 22-23 in dimethylsulfoxide. a) Which hydrogen of fluorenone is deprotonated by NaOH? b) Why is fluorenone so easy to deprotonate compared to a "normal" CH bond. Justify your answer appropriately.
4) Refer to the following information for parts a -e: Ethylene glycol, C;H.O. (b. is a...
4) Refer to the following information for parts a -e: Ethylene glycol, C;H.O. (b. is a sweet tasting liquid used as a main component of antifreeze or coolant for cars. The combustion of ethylene glycol is also a key reaction for the formation of polyester. a. What is the empirical formula for ethylene glycol? b. The balanced chemical equation for the combustion of ethylene glycol is shown below. Identity the oxidizing agent and the reducing agent for the reaction. |...
Discuss the purpose of the reaction. Discuss the function of the reagents used and what you...
Discuss the purpose of the reaction. Discuss the function of the
reagents used and what you are monitoring in that reaction.
JVCUDDL/64/1/649?response-content-dispositioninline Introduction: It is estimated that approximately 150 million metric tons of plastics are currently circulating in our global system of oceans and waterways. This seems like a fairly generic "big! number", and it's difficult to understand the scale of the problem without converting it to something more relatable. A standard empty plastic water bottle weighs approximately 12.7 g....
Ethylene glycol, C2H6O2 (l), is a sweet tasting liquid used as a main component of antifreeze...
Ethylene glycol, C2H6O2 (l), is a sweet tasting liquid used as a main component of antifreeze or coolant for cars. The combustion of ethylene glycol is also a key reaction for the formation of polyester. a. What is the empirical formula for ethylene glycol? b. The balanced chemical equation for the combustion of ethylene glycol is shown below. Identify the oxidizing agent and the reducing agent for the reaction. 2 C2H6O2 (l) + 5 O2 (g) 4 CO2 (g)...
As far I know PET granulate formed from mixture of ethylene glycol llus terrphthaloic acid So...
As far I know PET granulate formed from mixture of ethylene glycol llus terrphthaloic acid So I can directly select PET granulate right? in LCA
Draw the structure of the polymer (the repeating unit) that results when the following molecule is treated with peroxide (ROOR). 5. ROOR Polylethylene terephthalate) can be synthesized from terephthalic acid and ethylene Blycol in the presence of an acid catalyst and heat. 6. acid catalyst heat ??-?- (a) What are the two products of the reaction? (b) What is the acronym of Poly(ethylene terephthalate)?
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol (CH-OH) is incorporated, but no more ester bonds can be formed. a. Based on the above, what is the extent of reaction, p? b. How does fav determine whether a linear or network polymer is formed as p nears 1? c. Why do you believe the polymer in this reaction will be a gel-network or linear chains? d. What is fivg, the average number...
Terephthalic acid (TPA) is synthesized from -xylene (PX) in the
process C8H10 +302 – C8H6O4 +2H2O shown below. A fresh feed of pure
liquid PX combines with a recycle stream containing PX and a
solution (S) of a catalyst (a cobalt salt) in a solvent (methanol).
The combined stream, which contains S and PX in a 3:1 mass ratio,
is fed to a reactor in which 90% of the PX is converted to TPA. A
stream of air at 25...
Be sure to answer all parts. Poly(ethylene oxide) can be prepared from ethylene oxide by either anionic or cationic polymerization methods. Select reaction mechanisms for both processes. Use H3ot as the acid and OH as the base. Select the correct cationic mechanism below. H30* он H30* он НН
Fluorenone can be synthesized from fluorene by reaction with NaOH in the presence of oxygen and a catalyst. The first step of the reaction is deprotonation of fluorenone. CH bonds normally have a pK_a in the 50+, but the pK_a of fluorenone is estimated to be 22-23 in dimethylsulfoxide. a) Which hydrogen of fluorenone is deprotonated by NaOH? b) Why is fluorenone so easy to deprotonate compared to a "normal" CH bond. Justify your answer appropriately.
4) Refer to the following information for parts a -e: Ethylene glycol, C;H.O. (b. is a sweet tasting liquid used as a main component of antifreeze or coolant for cars. The combustion of ethylene glycol is also a key reaction for the formation of polyester. a. What is the empirical formula for ethylene glycol? b. The balanced chemical equation for the combustion of ethylene glycol is shown below. Identity the oxidizing agent and the reducing agent for the reaction. |...
Discuss the purpose of the reaction. Discuss the function of the
reagents used and what you are monitoring in that reaction.
JVCUDDL/64/1/649?response-content-dispositioninline Introduction: It is estimated that approximately 150 million metric tons of plastics are currently circulating in our global system of oceans and waterways. This seems like a fairly generic "big! number", and it's difficult to understand the scale of the problem without converting it to something more relatable. A standard empty plastic water bottle weighs approximately 12.7 g....
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