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Does sonication break bonds for a 10kdalton polymer.

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Mitch:
Does sonication break bonds in general?

Albert:
I think it depends on the conditions (i.e. time).

Dude:
There are a number of studies that indicate that high intensity sound waves can cause mechanochemical degradation of polymers.  If you need to degas a viscous goo and maintain the original properties (viscosity, GPC molar mass), I would try to gently heat the sample to lower the viscosity for quicker air release.

P:
Do you have access to a GPC/SEC machine?    You could take your polymer and measure the MW and polydispersity and then dissolve the sample up and give it a couple of hours sonification and then GPC it again and compare. ??

DrCMS:
Sonication can break bonds.

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