Cationic polymerization Cellulose

L-ascorbic acid and, 25 751 catalytic esterification of, 10 482 in cationic polymerization of cyclic siloxanes, 22 560 cellulose as, 11 266 a-chiral and homologated, 13 669 control methods for, 26 687-690 derived from halogen fluorides,... [Pg.9]

Another example is grafting to cellulose. BF3 can be adsorbed to the surface of the polymer. It then reacts with hydroxy groups and yields reactive sites for cationic polymerization of a-methyl styrene and isobutylene [402], These reactions are carried out at —80°C. [Pg.629]

Anionic and Cationic Polymerizations o Radical Polymerization Advances o Coordination Polymerizations 0 Step-Growth Polymerization Advances 0 Synthesis of Tactic Polymers o Stereoblock Copolymers o Dispersion Polymerizations o Cellulosic Graft Copolymers o Diels-Alder Polymer Forming Reactions o A New Path To Phenolic Resins o Nitrogen Heterocycle Polymerizations o Optically Active Polymers o Poly (Phenylene Sulfide) o Poly (Aryl Ethers) o (Poly (Aryl Ether Sulfones) o Epoxy and Isocyanate Resin Replacement o Azlactone Functionalized Oligomers o Epoxy Resin-Isocyanate Reactions o Chelating Polymers o Oxazoline Functionalized Polymers o Poly (Alkyl Methacrylates) o Macromers... [Pg.559]

In evaluation of polymeric cationic cellulose ether derivatives to be used as ingredients for hair shampoos, developed specifically to improve performance... [Pg.504]

The earliest polymeric cationic aftertreatments stemmed from the development of crease-resist finishes for cellulosic fibres. One such, promoted specifically for its colour fastness improvements when applied as an aftertreatment to direct dyeings, was a condensation product of formaldehyde with dicyandiamide (Scheme 10.82). Many similar compounds followed, such as condensation products of formaldehyde with melamine (10.212), polyethylene imine) with cyanuric chloride (10.213) and alkyl chlorides with polyethylene imine) (10.214 R = alkyl). [Pg.237]

Table 10.44 Classes of polymeric cationic agents for aftertreatment of dyed cellulosic fibres [448]...

The synthesis of the polymeric cationic glycoconjugate 80 was carried out accordingly the methodology depicted in Scheme 8. Cellulose 77 dissolved in DMA/LiCl was reacted with chloroacetyl chloride leading to halogenated... [Pg.206]

Richards, G. N., and E. F. T. White Graft polymerization on cellulosic materials. Part I. Cation-exchange membranes from paper and acrylic acid. J. Polymer Sci. C. No. 4, 1251 (1964). [Pg.150]