申请人:——
公开号:US20010016628A1
公开(公告)日:2001-08-23
Structurally isomeric poly(alkyl ethylenes) with H and Y structures, polymeric bridging segments and a &PSgr; index of 2×10
−3
to 8×10
−3
(kJ/mole/degree), have decreased instability in the melt and more advantageous processing properties.
The structurally isomeric poly(alkyl ethylenes) with H and Y structures are synthesized by an irradiating method, a melt reaction method or a solid phase reaction method by reacting poly(alkyl ethylenes) with 0.05 to 5% by weight of monofunctional, difunctional and polyfunctional monomers, optionally in the presence of peroxides.
The structurally isomeric poly(alkyl ethylenes) are suitable for producing films, sheets, panels, coatings, pipes, hollow objects and foams.
具有 H 和 Y 结构、聚合物桥段和 &PSgr 的结构异构聚(烷基乙烯);指数为 2×10
-3
至 8×10
-3
(kJ/mole/degree) 的异构聚(烷基乙烯)在熔体中的不稳定性降低,加工性能更优越。
具有 H 和 Y 结构的结构异构聚(烷基乙烯)是通过辐照法、熔融反应法或固相反应法,使聚(烷基乙烯)与 0.05 至 5%(按重量计)的单官能团、双官能团和多官能团单体反应(可选择在过氧化物存在的情况下)而合成的。
结构异构的聚烷基乙烯适用于生产薄膜、板材、面板、涂层、管道、中空物体和泡沫。