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Synthesis and characterization of symmetrical triblock copolymers containing crystallizable high-trans-1,4-polybutadiene

✍ Scribed by Xuetao Zhang; Chunqing Zhang; Yurong Wang; Yang Li

Publisher
Springer
Year
2009
Tongue
English
Weight
369 KB
Volume
65
Category
Article
ISSN
0170-0839

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A series of high trans-1,4-low-cis-1,4-high trans-1,4-stereotriblock polybutadienes (HTPB-b-LCPB-b-HTPBs) were synthesized through a sequential anionic polymerization of butadiene (Bd) initiated by barium salt of di(ethylene glycol) ethylether/triisobutylaluminium/dilithium (BaDEGEE/TIBA/DLi). The p

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## Abstract The copolymerization of butadiene (Bd) and isoprene (Ip) with a supported titanium‐triisobutyl aluminum catalyst system was studied. An analysis using differential scanning calorimetry, X‐ray diffraction, and ^13^C‐NMR spectra indicated that products with 25–60 mol % Bd units were rando