Synthesis of Macromolecular Structures - Bewerkingsoverzicht

R0882878: /* 27 januari 2025 */

2026-01-28T12:19:30Z

27 januari 2025

← Oudere versie		Versie van 28 jan 2026 14:19
Regel 5:		Regel 5:

	==Examenvragen==		==Examenvragen==
	===27 januari ~~2025~~===		===27 januari 2026===
	====Mario Smet====		====Mario Smet====
	#Discuss the potential causes of retardation in RAFT polymerizations. How can you overcome this problem?		#Discuss the potential causes of retardation in RAFT polymerizations. How can you overcome this problem?

R0882878: /* Examenvragen */

2026-01-28T12:19:19Z

Examenvragen

@@ Regel 5: / Regel 5: @@
 ==Examenvragen==
 ===28 januari 2025===
 ====Mario Smet====

R0834942: /* Mario Smet */

2025-01-28T20:56:20Z

Mario Smet

← Oudere versie		Versie van 28 jan 2025 22:56
Regel 9:		Regel 9:
	#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.		#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.
	#What are ARGET and ICAR. Give the pro's and con's for both.		#What are ARGET and ICAR. Give the pro's and con's for both.
	#How would you synthesize this star polymer? Give the mechanism and motivate why, starting from a 1,3,5-triethyl benzene-core. ~~Would you say~~ the polymerization ~~starts~~ from the core ~~and grows~~ outwards or do the arms ~~have to be~~ synthesized seperately ~~and attached after~~?[[Bestand:ATRC_star_polymer.png]]		#How would you synthesize this star polymer? Give the mechanism and motivate why, starting from a 1,3,5-triethyl benzene-core. Does the polymerization proceed from the core outwards or are the arms synthesized seperately? (idem groups are the same as the arm given).[[Bestand:ATRC_star_polymer.png]]
	#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene) [[Bestand:Graft_onto.png]]		#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene) [[Bestand:Graft_onto.png]]

R0834942: /* Mario Smet */

2025-01-28T20:54:16Z

Mario Smet

← Oudere versie		Versie van 28 jan 2025 22:54
Regel 9:		Regel 9:
	#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.		#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.
	#What are ARGET and ICAR. Give the pro's and con's for both.		#What are ARGET and ICAR. Give the pro's and con's for both.
	#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization starts from the core and grows outwards or do the arms have to be synthesized seperately and attached after?[[Bestand:ATRC_star_polymer.png]]		#How would you synthesize this star polymer? Give the mechanism and motivate why, starting from a 1,3,5-triethyl benzene-core. Would you say the polymerization starts from the core and grows outwards or do the arms have to be synthesized seperately and attached after?[[Bestand:ATRC_star_polymer.png]]
	#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene [[Bestand:Graft_onto.png]]		#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene) [[Bestand:Graft_onto.png]]

	====Guy Koeckelberghs====		====Guy Koeckelberghs====

R0834942: /* Mario Smet */

2025-01-28T20:53:09Z

Mario Smet

← Oudere versie		Versie van 28 jan 2025 22:53
Regel 9:		Regel 9:
	#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.		#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.
	#What are ARGET and ICAR. Give the pro's and con's for both.		#What are ARGET and ICAR. Give the pro's and con's for both.
	#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization ~~proceeds~~ from the core ~~outward~~ or do ~~you synthesize~~ the arms seperately and ~~attach them~~ after? [[Bestand:ATRC_star_polymer.png]]		#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization starts from the core and grows outwards or do the arms have to be synthesized seperately and attached after?[[Bestand:ATRC_star_polymer.png]]
	#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene [[Bestand:Graft_onto.png]]		#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene [[Bestand:Graft_onto.png]]

R0834942: /* Mario Smet */

2025-01-28T20:51:38Z

Mario Smet

← Oudere versie		Versie van 28 jan 2025 22:51
Regel 9:		Regel 9:
	#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.		#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.
	#What are ARGET and ICAR. Give the pro's and con's for both.		#What are ARGET and ICAR. Give the pro's and con's for both.
	#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after? [[Bestand:ATRC_star_polymer.png]]		#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after? [[Bestand:ATRC_star_polymer.png]]
	#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene [[Bestand:Graft_onto.png]]		#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene [[Bestand:Graft_onto.png]]

R0834942: /* Mario Smet */

2025-01-28T20:51:17Z

Mario Smet

← Oudere versie		Versie van 28 jan 2025 22:51
Regel 9:		Regel 9:
	#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.		#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.
	#What are ARGET and ICAR. Give the pro's and con's for both.		#What are ARGET and ICAR. Give the pro's and con's for both.
	#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after? [[Bestand:ATRC_star_polymer.png]]		#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after? [[Bestand:ATRC_star_polymer.png]]
	#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene [[Bestand:Graft_onto.png]]		#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene [[Bestand:Graft_onto.png]]

R0834942: /* Examenvragen */

2025-01-28T20:50:40Z

Examenvragen

← Oudere versie		Versie van 28 jan 2025 22:50
Regel 9:		Regel 9:
	#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.		#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.
	#What are ARGET and ICAR. Give the pro's and con's for both.		#What are ARGET and ICAR. Give the pro's and con's for both.
	#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after?		#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after? [[Bestand:ATRC_star_polymer.png]]
	[[Bestand:ATRC_star_polymer.png]]		#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene [[Bestand:Graft_onto.png]]
	#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene)
	[[Bestand:Graft_onto.png]]

	====Guy Koeckelberghs====		====Guy Koeckelberghs====
	#Do the polymerizations of the monomers below proceed via a step growth or chain growth mechanism: motivate your answer. If conversion is 98%, what would you do to result in Pn=20? What happens when you use a weak base, rather than a very strong one?		#Do the polymerizations of the monomers below proceed via a step growth or chain growth mechanism: motivate your answer. If conversion is 98%, what would you do to result in Pn=20? What happens when you use a weak base, rather than a very strong one? [[Bestand:SoMS_Koeckelberghs_2014_1.png\|400px\|center\|alternatieve tekst]]
	[[Bestand:SoMS_Koeckelberghs_2014_1.png\|400px\|center\|alternatieve tekst]]
	#Explain SEC: How can you determine the molar mass? What are the drawbacks and how can you solve them?		#Explain SEC: How can you determine the molar mass? What are the drawbacks and how can you solve them?
	#Explain the 'majority rules' principle and apply it to a system of choice.		#Explain the 'majority rules' principle and apply it to a system of choice.

R0834942: /* Mario Smet */

2025-01-28T20:48:32Z

Mario Smet

← Oudere versie		Versie van 28 jan 2025 22:48
Regel 9:		Regel 9:
	#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.		#Give three methods that can be used to control or modify the degree of branching of hyperbranched polymers. Give a specific example of the obtained molecule for each method and the needed reagents.
	#What are ARGET and ICAR. Give the pro's and con's for both.		#What are ARGET and ICAR. Give the pro's and con's for both.
	#~~(A star polymer is given with a 1,3,5-triethyl benzene-core, arms made of CH2=CH2-CHOOCH3-monomer, end-capped with -S-C(SCH3)=S).~~ How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after?		#How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after?
			[[Bestand:ATRC_star_polymer.png]]
	#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene)		#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene)
	[[Bestand:Graft_onto.png]]		[[Bestand:Graft_onto.png]]

R0834942: /* Mario Smet */

2025-01-28T20:42:14Z

Mario Smet

← Oudere versie		Versie van 28 jan 2025 22:42
Regel 10:		Regel 10:
	#What are ARGET and ICAR. Give the pro's and con's for both.		#What are ARGET and ICAR. Give the pro's and con's for both.
	#(A star polymer is given with a 1,3,5-triethyl benzene-core, arms made of CH2=CH2-CHOOCH3-monomer, end-capped with -S-C(SCH3)=S). How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after?		#(A star polymer is given with a 1,3,5-triethyl benzene-core, arms made of CH2=CH2-CHOOCH3-monomer, end-capped with -S-C(SCH3)=S). How would you synthesize this star polymer? Give the mechanism and motivate why. Would you say the polymerization proceeds from the core outward or do you synthesize the arms seperately and attach them after?
	#~~[[Bestand:Graft_onto.png]]~~		#How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.(PS is polystyrene)
	~~(PS is polystyrene).~~ How could this polymer be synthesized? Give the mechanism, the reactants needed and motivate your answer.		[[Bestand:Graft_onto.png]]

	====Guy Koeckelberghs====		====Guy Koeckelberghs====