September 24, 2020, 03:13:38 AM
Forum Rules: Read This Before Posting


Topic: Does sonication break bonds for a 10kdalton polymer.  (Read 8255 times)

0 Members and 1 Guest are viewing this topic.

Offline Mitch

  • General Chemist
  • Administrator
  • Sr. Member
  • *
  • Posts: 5294
  • Mole Snacks: +376/-2
  • Gender: Male
  • "I bring you peace." -Mr. Burns
    • Chemistry Blog
Does sonication break bonds for a 10kdalton polymer.
« on: August 30, 2006, 04:10:08 AM »
Does sonication break bonds in general?
Most Common Suggestions I Make on the Forums.
1. Start by writing a balanced chemical equation.
2. Don't confuse thermodynamic stability with chemical reactivity.
3. Forum Supports LaTex

Offline Albert

  • Lonely Wanderer
  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1050
  • Mole Snacks: +112/-22
  • Gender: Male
  • Half Decent Pharmaceutical Chemist
Re: Does sonication break bonds for a 10kdalton polymer.
« Reply #1 on: August 30, 2006, 05:16:36 AM »
I think it depends on the conditions (i.e. time).

Offline Dude

  • Chemist
  • Full Member
  • *
  • Posts: 237
  • Mole Snacks: +42/-9
  • I'm a mole!
Re: Does sonication break bonds for a 10kdalton polymer.
« Reply #2 on: September 01, 2006, 10:18:34 AM »
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.

Offline P

  • Full Member
  • ****
  • Posts: 639
  • Mole Snacks: +64/-15
  • Gender: Male
  • I am what I am
Re: Does sonication break bonds for a 10kdalton polymer.
« Reply #3 on: September 01, 2006, 11:39:53 AM »
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. ??
Tonight I’m going to party like it’s on sale for $19.99!

- Apu Nahasapeemapetilon

Online DrCMS

  • Chemist
  • Sr. Member
  • *
  • Posts: 1265
  • Mole Snacks: +206/-81
  • Gender: Male
Re: Does sonication break bonds for a 10kdalton polymer.
« Reply #4 on: September 04, 2006, 04:59:52 AM »
Sonication can break bonds.

Sponsored Links