The relationship between their properties and content of hard segment were discussed.
讨论了共聚物性能同硬段含量的关系。
The final recovery rate and the recovery speed are mainly related to the stability of the hard segment domains.
而形状记忆的恢复率及恢复速度则决定于硬段相区域的稳定性。
Three dimensional hydrogen bonding in hard segment domains can be formed by further bonding of the above planar hydrogen bondings.
认为这些平面氢键可以通过进一步键合来形成硬段微区中的三维氢键。
It was found that there existed some interaction between the hard segment of polyurethane and polyacrylonitrile in this polymer blend system.
发现在该共混体系中，聚氨酯硬段与聚丙烯腈之间存在一定程度的相互作用。
The results showed that increase hard segment content, soft segment sequence length and ionic group to be favourable for rising tensile strength.
研究表明：硬链段含量、软链段链长的提高和离子基团的增加均有利于拉伸强度的提高。
When increasing hard segment content, the interaction between SPU moleculars is intensified whereas the miscibility of the blends in decreased consequently.
多嵌段聚氨酯硬段含量的增加，加强了SPU分子间的相互作用，同时也减小了共混物两组分的相容性。
The effects of synthetic method, components of soft segment and hard segment, post cure on the mechanical properties of polyurethane elastomers were studied.
研究了合成方法、软段及硬段组成结构、熟化条件等因素对聚氨酯弹性体力学性能的影响。
The spherulite growth behaviour of hard segment has been studied by SALS and other techniques for polyester-polyether block copolymers with low hard segment content.
采用SALS等方法研究了低硬段含量的聚酯-聚醚多嵌段共聚物中硬段结晶时的球晶生长规律。
The results show that the level of polysulfide polyurea and the content of hard segment in polysulfide polyurea influence the morphology, T_g and modulus of cured epoxy resin.
结果表明，液体聚硫聚脲齐聚物的用量、齐聚物中聚脲含量对固化后的环氧树脂玻璃化温度、模量及形态有较大影响。
Polyurea coatings with different contents of hard segment polyaspartic ester(PAE) were investigated through aging tests of marine environment outdoor exposure and salt fog testing.
通过海洋大气环境户外暴晒老化试验和盐雾加速老化试验，试验研究了不同硬段含量的聚天冬氨酸酯（PAE）聚脲涂层的耐海洋环境老化性能。
The results showed that the influence of hard segment content on aliphatic PU mechanical properties is the biggest, while the content of organic modified montmorillonite is the second.
结果表明，硬段含量对材料力学性能影响最大，其次是有机蒙脱土含量。
Influences of the hard segment content, crosslinking degree and density on the compressive stress-strain property, compressive stress relaxation and tensile property of PUEF were studied.
结果表明，硬段含量及密度对PUEF压缩应力-应变性能的影响较大，而交联度对压缩应力松弛及拉伸性能的影响较大。
It was found that the high crystallinity of the soft segment regions and the formation of hard segment domains are the necessary conditions for polyurethanes with good shape memory behavior.
通过DSC、弯曲实验和力学实验，研究了形状记忆聚氨酯的性能，发现软段高度结晶和硬段聚集形成硬段微区是其具有较好形状记忆性能的必要条件。
Ester bond can be formed through the polycondensation of hard segment monomer with uniform segment length containing amide bond and dihydric alcohol, which is a better way to prepare polyesteramide.
先制备具有均一链长的含有酰胺键的硬段单体，然后与二元醇进行缩聚反应生成酯键是制备性能良好的聚酰胺酯的较好途径。
With further increase of salt concentration, interaction between polymer and ion enhanced, which brought about the formation of new hard - segment aggregates.
随着盐浓度进一步增加，聚合物-离子相互作用增强，体系中硬段结构出现新的聚集形态。
Tg of the hard-segment enhances with increasing hard-segment content and forming much H-bonds.
随着硬段含量的提高以及氢键的形成，硬段的玻璃化温度是逐步升高的。
Tg of the hard-segment enhances with increasing hard-segment content and forming much H-bonds.
随着硬段含量的提高以及氢键的形成，硬段的玻璃化温度是逐步升高的。
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