Tacho
International Hazard
Posts: 582
Registered: 5-12-2003
Member Is Offline
Mood: No Mood
|
|
How to make caprolactone polymers?
Polycaprolactone is soft like playdough at 60ºC and resistant as nylon at room temp.
I would like to make some.
1- oxidize cyclehexanone with peracetic acid to obtain caprolactone;
2- open ring and polymerize with stannous octanoate.
Has anyone here done that? Any references, tips?
BTW, I know I can buy it, but I want to make it.
|
|
|
j_sum1
Administrator
Posts: 6171
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: It's chromium time.
|
|
Anyone ever use polymorph plastic?
My question is not necessarily related to synthesis although that might be quite interesting too and is why I appended my question to this thread.
Has anyone had any experience in using this stuff? It sells under the name of "polymorph plastic"
https://en.wikipedia.org/wiki/Polycaprolactone
http://www.ebay.com./sch/i.html?_nkw=polymorph+plastic
I came across a YT video where someone used it to fashion a custom stopper for an erlenmeyer. It wasn't actually that pretty but it was easy to see
that with a bit of effort it could be.
Anyway I am interested in the physical properties of the stuff at room temperature. How rigid is it? How much does it deform? Does it resist a
range of chemical attacks?
Obviously it will be useless in any application where the temperature rises a bit. But it might be useful at RT. The fact that it can be remoulded
and reused has some appeal too.
|
|
|
Metacelsus
International Hazard
Posts: 2524
Registered: 26-12-2012
Location: Boston, MA
Member Is Offline
Mood: Double, double, toil and trouble
|
|
It's not stable to acid or base (it hydrolyzes). Resistance to organic solvents is also poor.
|
|
|
j_sum1
Administrator
Posts: 6171
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: It's chromium time.
|
|
I guess that makes it somewhat un-useful for many applications. I won't be in a hurry to invest in any.
Thanks for that Metacelsus.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
