Question: Would you prefer N,N-dimethyl-p-toluidine or Ethyl-4-dimethylamino benzoate as tertiary amine co-initiator with Camphorquinone?

Question: Would you prefer N,N-dimethyl-p-toluidine or Ethyl-4-dimethylamino benzoate as tertiary amine co-initiator with Camphorquinone?

Wuestion for polymer expert: Would you prefer N,N-dimethyl-p-toluidine or Ethyl-4-dimethylamino benzoate as tertiary amine co-initiator with Camphorquinone????

Fabrício Ogliari: EDAB of course!

Fabrício Ogliari: DMPT is less effective and have a great color instability.

Salvatore Sauro: Such useful information!!!!! Thanks Fabricio

Fabrício Mezzomo Collares: I agree

Victor Feitosa: EDAB is better!

Victor Feitosa: For some resins, what do you think about sulfinic acids Fabrício Ogliari ??

Fabrício Ogliari: Its commonly used for chemical polymerization based on acid proton donation, but its degree of conversion is very low.

Salvatore Sauro: Shall we use it as further co-initiator with cq and amine?

Fabrício Ogliari: I dont think so. I cant see a chemical mechanism that justify its use.

Salvatore Sauro: http://onlinelibrary.wiley.com/…/pol.1959…/abstract

The sulfinic acid-initiated polymerization of methyl…
onlinelibrary.wiley.com

Fabrício Ogliari: As you can see its necessary oxidizing agents.

Salvatore Sauro: Fabrício Ogliari in dual cure benzoyl peroxide systems?

Fabrício Ogliari: Yes! But acid enviroment can start the polymer formation too.

Fabrício Ogliari: You can see this mechanism in Prime&Bond activator

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