e****d
发帖数: 16 | 1 i am working on polythers, such as poly(ether keton)s and poly(ether sulfone)s
through polycondensation. if you are working on the same field as me, let's
discuss something about it . thanks. |
c*********e
发帖数: 119 | 2 I'm doing PET which is of Polyester.
I am glad to discuss with you too.
sulfone)s
let's
【在 e****d 的大作中提到】
: i am working on polythers, such as poly(ether keton)s and poly(ether sulfone)s
: through polycondensation. if you are working on the same field as me, let's
: discuss something about it . thanks.
|
e****d
发帖数: 16 | 3 I have synthesized a biphenol monomer which is said to be useful in
preparation of polyesters.I am not sure whether it can be used in solution
polycondensation.
In the bulky structure of the monomer, there are two groups(4-hydroxyphenyl-).
what are the common methods when polyesters are prepared?? |
c*********e
发帖数: 119 | 4 It should be "melting ploymerization". In order to keep very low water content
and oxygen content, it must be in vacuum or Nitrogen gas. There must be
catalyst and stirring. But I also do not the details. It depends on the
different monomers.
groups(4-hydroxyphenyl-).
【在 e****d 的大作中提到】
: I have synthesized a biphenol monomer which is said to be useful in
: preparation of polyesters.I am not sure whether it can be used in solution
: polycondensation.
: In the bulky structure of the monomer, there are two groups(4-hydroxyphenyl-).
: what are the common methods when polyesters are prepared??
|
