E. Renard et al., POLYCONDENSATION OF CYCLODEXTRINS WITH EPICHLOROHYDRIN - INFLUENCE OFREACTION CONDITIONS ON THE POLYMER STRUCTURE, Macromolecular symposia, 122, 1997, pp. 229-234
A series of water-soluble polymers was synthesized by polycondensation
of cyclodextrin with epichlorohydrin under basic conditions. We studi
ed their molecular distribution as a function of molar ratios of react
ants. NaOH concentration showed that very high molecular averages (Mw
> 10(6)) can be obtained. The substitution patterns were determined by
C-13 NMR analysis and standard methylation analysis of polysaccharide
s. The formation of side chains and bridges consisting of sequences of
poly(2-hydroxypropyl)ether units were demonstrated by electrospray io
nization mass spectrometry and gas liquid chromatography-mass spectrom
etry. The predominant position of substitution depends on the NaOH con
centration.