scholarly journals Cationic Copolymerization of Divinyl Ethers with Vinyl Ether. Synthesis and Cation-Binding Property of Copolymer with Benzo-19-Crown-6 Units

1993 ◽  
Vol 25 (8) ◽  
pp. 839-845 ◽  
Author(s):  
Toyoji Kakuchi ◽  
Katsutoshi Aoki ◽  
Osamu Haba ◽  
Kazuaki Yokota
1970 ◽  
Vol 1 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Tadashi Masuda ◽  
Toshinobu Higashimura ◽  
Seizo Okamura

2019 ◽  
Vol 485 (6) ◽  
pp. 697-700 ◽  
Author(s):  
M. V. Markova ◽  
I. V. Tatarinova ◽  
O. A. Tarasova ◽  
K. A. Apatrsin ◽  
V. V. Kireeva ◽  
...  

Cationic copolymerization of cholesterol vinyl ether with N-allenylpyrrolidone yielded co-oligomers with molecular mass of 1200-2100. The polymerization of N-allenylpyrrolidone involves both 1,2- and 2,3-positions of the allenyl substituent to give four types of units as a result of prototropic isomerization of the initially formed structures. In the developed method, the composition of co-oligomers can be controlled and, hence, their hydrophilic/hydrophobic balance, solubility, and membranotropic properties can also be controlled to change the potential biological activity of the products.


e-Polymers ◽  
2002 ◽  
Vol 2 (1) ◽  
Author(s):  
Ondine Confortini ◽  
Beatrice Verdonck ◽  
Eric J. Goethals

AbstractThe copolymerization of isobutyl vinyl ether (IBVE) with methyl vinyl ether (MVE), initiated by the system 1,1-diethoxyethane/trimethylsilyl iodide/zinc iodide and conducted at 0°C in toluene, was found to be ‘living’ just as the homopolymerizations of these monomers. Monomer reactivity ratios are rIBVE = 1.08 and rMVE = 0.43. The lower critical solution temperature of polyMVE in water, situated around 37°C, was lowered to 10°C (for a 0.25 wt.-% solution) when 6 mol-% of IBVE units were introduced in copolymers of molar mass 3000 - 7000 g/mol. At higher IBVE contents, the polymers are insoluble in water at all temperatures.


1994 ◽  
Vol 31 (6) ◽  
pp. 751-759
Author(s):  
Toyoji Kakuchi ◽  
Hisaho Hashimoto ◽  
Yasuhiro Harada ◽  
Toshifumi Satoh ◽  
Kazuaki Yokota

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