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首页> 外文期刊>Journal of Applied Polymer Science >Structure and mechanical properties of nitrile rubbers modified with iodine
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Structure and mechanical properties of nitrile rubbers modified with iodine

机译：碘改性丁腈橡胶的结构与力学性能

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摘要

Nitrile rubbers, both common and hydrogenated, revealed some kind of ordering, as detected by WAXS. Strain induced crystallization is responsible for the enhanced degree of crystallinity for HNBR. In the case of NBR, another mechanism has been proposed, namely specific interactions between carbon-carbon double bonds from butadiene and cyano groups from acrylonitrile monomer units, leading to an EDA complex formation. Iodination reduces the degree of crystallinity of both materials; however, their stiffness increases as the result of modification, probably due to dipole-dipole interactions or hindering effects accompanying introduction of "large" iodine atoms into the macromolecular structure. (C) 1998 John Wiley & Sons, Inc. [References: 20]
机译：WAXS检测到，普通和氢化的丁腈橡胶都呈现出某种有序性。应变诱导的结晶是HNBR结晶度提高的原因。对于NBR，提出了另一种机理，即丁二烯的碳-碳双键与丙烯腈单体单元的氰基之间的特定相互作用，导致形成EDA络合物。碘化会降低两种材料的结晶度。然而，它们的刚度由于改性而增加，可能是由于偶极-偶极相互作用或伴随“大”碘原子引入大分子结构的阻碍作用。 （C）1998 John Wiley＆Sons，Inc. [参考：20]

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