Properties of block and graft copolymers of polybutadiene with small complexed poly(4‐vinylpyridine) segments
作者:
Hakim Janah,
Jean‐Claude Favier,
Pierre Sigwalt,
Mihaïlo S. Jačovič,
期刊:
Polymers for Advanced Technologies
(WILEY Available online 1992)
卷期:
Volume 3,
issue 1
页码: 41-46
ISSN:1042-7147
年代: 1992
DOI:10.1002/pat.1992.220030106
出版商: John Wiley&Sons, Ltd.
关键词: Butadiene;4‐vinylpyridine block copolymers;lonomer‐like material;complexation with zinc chloride;Rheological properties
数据来源: WILEY
摘要:
AbstractVarious diblocks, triblocks and a graft copolymer of butadiene with 4‐vinylpyridine short blocks have been prepared. They were complexed with ZnCl2to give ionomer‐like materials. For all copolymers, the Tgof the elastomeric block (−84°C to −91°C) was unchanged by complexation. For all diblocks and triblocks with short blocks (DPn∼ 3) the storage modulus was only slightly increased by comparison with uncomplexed materials. For the graft copolymer even with short blocks the material is less sensitive to temperature after complexation. For triblocks, when theDPnof the vinylpyridine blocks was high enough (15 units), complexes were associated in multiplets of large size and the elastomeric properties were retained
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