Reference

Cationic polymerization of fulvenes

Cationic polymerization of fulvenes. Rentsch, Christoph; Slongo, Mario; Neuenschwander, Markus (Inst. Org. Chem., Univ. Bern, Bern, Switz.). Makromol. Chem., 179(6), 1647-8 (English) 1978. CODEN: MACEAK. ISSN: 0025-116X. DOCUMENT TYPE: Journal CA Section: 35 (Synthetic High Polymers) 6,6-Dimethylfulvene (I), 6,6-pentamethylenefulvene (II), and 6,6-diphenylfulvene (III) were polymd. by the cationic catalysts Cl3CCO2H [76-03-9] or SnCl4 [7646-78-8]. I polymer [26811-21-2] was sol. in many org. solvents but was very sensitive to O. II polymer [67076-16-8] had reduced viscosity 14 cm3/g (8 mg/mL, 25°, THF), was obtained in 100% yield, and had soly. comparable to that of I polymer, but was less sensitive to O. III polymer [67076-17-9] had reduced viscosity ~11.5 cm3/g (8 mg/mL, THF, 25°), was insol. in chlorinated hydrocarbons, and was virtually unaffected by air.

Synthesis of polymers with benzo-19-crown-6 units via cyclopolymerization of divinyl ethers

Synthesis of polymers with benzo-19-crown-6 units via cyclopolymerization of divinyl ethers. Yokota, Kazuaki; Matsumura, Makoto; Yamaguchi, Kazumi; Takada, Yoshiyuki (Fac. Eng., Hokkaido Univ., Sapporo 060, Japan). Makromol. Chem., Rapid Commun., 4(11), 721-4 (English) 1983. CODEN: MCRCD4. ISSN: 0173-2803. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 25 1,2-Bis[2-(2-vinyloxyethoxy)ethoxy]benzene [88108-36-5] is cationically cyclopolymd. to give a poly(crown ether) [7646-78-8] with no.-av. mol. wt. 8200-12,600 which can be used to ext. Li, Na, K, Rb, and Cs picrates into CH2Cl2. Cation-binding activity and selectivity was compared with other crown ether-contg. 88108-36-5 is just another one chemical used in this study. polymers. .