Palladium-catalyzed coupling polymerization of bromophenylallenes and sodium malonates

Chemistry Letters

Volumn , Issue 8, 1997, Pages 685-686

  Miyaki, Nobuyuki ^a   Tomita, Ikuyoshi ^a   Endo, Takeshi ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0031535533     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1997.685     Document Type: Article

References (13)

1. a) I. Shimizu and J. Tsuji, Chem. Lett., 1984, 233;
2. b) M. Ahmar, B. Cazes, and J. Gore, Tetrahedron Lett., 29, 4089 (1984);
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4. N. Miyaki, I. Tomita, and T. Endo, Macromolecules, 29, 6685 (1996).
5. N. Miyaki, I. Tomita, and T. Endo, J. Polym. Sci., Part A: Polym. Chem. in press.
6. W. Heitz, W. Brügging, L. Freund, M. Gailberger, A. Greiner, H. Jung, U. Kampschulte, N. Nießner, F. Osan, H.-W. Schmidt, and M. Wicker, Makromol. Chem., 189, 119 (1988).
7. Soluble poly(phenylene-vinylene) derivatives have been prepared by modifications of monomers. See: a) H.-H. Hörhold and M. Helbig, Makromol. Chem., Macromol. Symp., 12, 229 (1987);
8. b) J. Heinze, J. Mortensen, K. Müllene, and R. Schenk, J. Chcm. Soc., Chem. Commun., 1987, 701;
9. c) H. Martelock, A. Greiner, and W. Heitz, Makromol. Chem., 192, 967 (1991);
10. d) Z. Bao, Y. Chen, R. Cai, and L. Yu, Macromolecules, 26, 5281 (1993).
11. -1.
12. Thermogravimetric (TGA) and differential scanning calorimetric (DSC) analyses were carried out under nitrogen to estimate the thermal stability of the polymers (3a and 3b). The 10 % weight loss temperature (the glass transition temperature) of 3a and 3b were observed at 356 (77) and 316 (51)°C, respectively.
13. The blue emission was observed when 3a was irradiated with UV.