Chemistry Reference
In-Depth Information
Br
P
BRR
P
SR
P
P
SiRRR
P
PRR
P
Fig.
8
.
8
Post-grafting on residual vinyl
groups.
cidyl methacrylate copolymers [43-45], after which
further modifications are possible.
Polyacrylates with pendant halomethyl groups can
be considered as the polyester analogues of the
chloromethyl polystyrenes; they present potential
uses for a wide range of useful transformations
[46,47]. Such linear polyesters can be obtained also
by the polyaddition reactions of bisepoxides such as
the diglycidyl ether of bisphenol A, with bis(haloace-
toxy) esters such as 1,4-bis[(chloroacetoxy) methyl]
benzene (Fig. 8.12). A cross-linked material also
would be obtained.
A simpler method to obtain such a material is the
opening reaction of the oxirane ring in polyglycidyl
methacrylate copolymers with methyliodide [48];
this one-step reaction gives reactive iodoalkyl groups
(Fig. 8.13).
