The highly polar urea linkage offers stronger hydrogen bonding and higher thermal stability to the polymers, which introduces higher and flatter shear modulus the rubbery plateau.
较高极性的脲键给聚合物提供了较强的氢键和较好的热稳定性，并使这些聚合物在橡胶平台区有较高和变化较小的动态剪切模量。
The highly polar urea linkage offers stronger hydrogen bonding and higher thermal stability to the polymers, which introduces higher and flatter shear modulus the rubbery plateau.
较高极性的脲键给聚合物提供了较强的氢键和较好的热稳定性，并使这些聚合物在橡胶平台区有较高和变化较小的动态剪切模量。
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