Sciencemadness Discussion Board

How to make caprolactone polymers?

Tacho - 14-7-2007 at 14:20

Polycaprolactone is soft like playdough at 60ÂșC 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.

Anyone ever use polymorph plastic?

j_sum1 - 1-11-2016 at 06:29

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"

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 - 1-11-2016 at 09:12

It's not stable to acid or base (it hydrolyzes). Resistance to organic solvents is also poor.

j_sum1 - 1-11-2016 at 14:20

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.