CHEN Dian-bao, FANG Wang-xi, WANG Li-xia, TANG Zhi-hong, HU Mei, TANG Xue-ming. FUNCTIONS OF ALLYL -HALOGEN IN POLYMERIZATION OF BUTADIENE WITH MoO2Br2 CATALYST SYSTEM[J]. Acta Polymerica Sinica, 1994,(5):513-519.
CHEN Dian-bao, FANG Wang-xi, WANG Li-xia, TANG Zhi-hong, HU Mei, TANG Xue-ming. FUNCTIONS OF ALLYL -HALOGEN IN POLYMERIZATION OF BUTADIENE WITH MoO2Br2 CATALYST SYSTEM[J]. Acta Polymerica Sinica, 1994,(5):513-519.DOI:
Br and I ) on polymerization activity and molecular weight of polymer has been studied in molybdenum catalyst system for 1
2-- polymerization of butadiene. The functions of CH2=CH -- CH2Br among three kind of allyl--halogen are the best for the catalytic activity and the regulation of molecular weight of 1
2-- polybutadiene from Mn= 3. 5 × 105 to 17. 5×105. From the data obtained by 13C--nmr and UV spectra of CH2= CH -- CH2X and butadiene molecules as well as parameters of polymerization activity and kynetics it was proposed that a frequency mechanism which was under the control of the molecular weight of polymer existed in the reac-tions between complexing reaction and discomplexing reaction