Kinetic Studies upon the Influence of Cyclodextrin on the Polymerization of Methacrylamides in Homogenous Aqueous Solution

Abstract

Summary: N‐methacryloyl‐1‐aminopropane (1), N‐methacryloyl‐1‐aminobutane (2), N‐methacryloyl‐1‐aminopentane (3), and N‐methacryloyl‐1‐aminohexane (4) are synthesized and treated with an aqueous solution of randomly methylated β‐cyclodextrin (Me‐β‐CD) to form the water‐soluble host‐guest complexes 1a–4a. In case of the aqueous polymerization of the free monomers 1–4 the initial polymerization rate increases with increasing water solubility. The opposite effect is observed in the case of the polymerizations of the Me‐β‐CD‐complexed methacrylamide monomers 1a–4a. The polymerization rates are increased with increasing alkyl chain length of the complexed monomers 1a–4a and decreasing water solubility of the free monomers 1–4.

Copolymerization of Fluorinated Monomers with Hydrophilic Monomers in Aqueous Solution in Presence of Cyclodextrin

“…Light scattering experiments showed that, from the beginning, the monomer complexes are not associated to micells. [19] Obviously, the resulting polymer coil interacts preferably with the hydrophobic complexes of PFMA (1a) leading to a local increase of concentration leading to higher relative reaction rate. All copolymerization parameters have been determined by the method of Kelen and Tüdös [20] and are presented in Table 1.…”

Studies on the Preparation of Stable PSt Latex in the Presence of Cyclodextrins and a Small Amount of Surfactant

“…On the other hand, the amount of b-CD in the aqueous phase increased and it would form steric hindrance to forbid the transportation of St to the polymerization loci. [27] The average diameters of the latex particle with different amounts of b-CD are displayed in Figure 6. As seen from Figure 6, average diameter increased with the increase of the concentration of b-CD.…”

Semicontinuous Emulsion Polymerization of Butyl Methacrylate and 1, 3-Butadiene in the Presence of Cyclodextrins and Cytocompatibility of Dicarboxylic Acid Telechelic Oligo(butyl Methacrylate)s Derived from Ozonolysis of the Latexes

“…Several examples of polymerizations in water of hydrophobic monomers have been reported. Thus, Ritter et al formed CD‐monomer complexes and then polymerized these using radical polymerizations 10–19. These polymerizations used the unique solubilizing power of CDs so that it was possible to produce aqueous solutions of the CD‐monomer complexes formed from monomers that are otherwise water insoluble.…”