Detail of "105-64-6"

Reference

Vinylidene fluoride copolymers

Vinylidene fluoride copolymers. Negishi, Junji; Ohtsuka, Michio; Matsuoka, Kimiaki (Central Glass Co., Ltd., Japan). Japan. Kokai JP 51132294 17 Nov 1976 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08F214-22. APPLICATION: JP 75-55943 14 May 1975. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) Vinylidene fluoride (I) was copolymd. with (meth)acrylic acid (or salt) in water in the presence of peroxydicarbonate and trichlorotrifluoroethane (II) [26523-64-8] or dichlorotetrafluoroethane [1320-37-2] to give polymers in high yield. For example, methyl cellulose 0.03, diisopropyl peroxydicarbonate [105-64-6] 0.2, I 16.5, and acrylic acid (III) 2 g in 40 cm3 water and 20 cm3 II were autoclaved at 40.degree. and initial pressure 40 kg/cm2 gage for 20 h to give copolymer [61778-05-0] in 90.8% yield, compared with 11.8% for a control ( I-III) prepd. without II, 0% for control using lauroyl peroxide as initiator, and 6% for control using acrylonitrile in place of III.

Investigations on the inhibition of radical polymerization of ethylene under high pressure

Investigations on the inhibition of radical polymerization of ethylene under high pressure. Raetzsch, Manfred; Baumann, Hans J. (VEB Leuna-Werke "Walter Ulbricht", Leuna, E. Ger.). Plaste Kautsch., 23(12), 890-4 (German) 1976. CODEN: PLKAAM. DOCUMENT TYPE: Journal CA Section: 35 (Synthetic High Polymers) The stoichiometric coeff. (.mu.) for inhibtion of radical polymn. of C2H4 [74-85-1] in C6H6 by diphenylpicrylhydrazyl (I) [1898-66-4] is 1, indicating that I is a suitable inhibitor for direct detn. of initiation rate consts.There are some reagents with their cas registry numbers 106-51-4 and 15520-11-3 are used in this study. and does not undergo side reactions with initiators. For p-benzoquinone (II) [106-51-4], .mu. never attains the theor. value of 2, and is different for each II-initiator combination. An activation energy for inhibition by II was calcd., and used to calc. activation energies for initiation by AIBN [78-67-1], tert-Bu2O2 [110-05-4], bis(4-tert-butylcyclohexyl) peroxydicarbonate [15520-11-3], and diisopropyl peroxydicarbonate [105-64-6]. The mechanism of inhibition by II is discussed. The decrease in .mu. for inhibition by O with temp. is related to the crit. temp. (.apprx.180.degree.) for O-initiated polymn. of C2H4, the temp. at which the initiating effect of O outweighs the inhibiting effect sufficiently that appreciable polymn. occurs. .