The factors increasing the interaction between hard and soft segments can improve the compatibility of polyurethane.
硬段分布对该聚氨酯体系的相容性及阻尼性能有较大影响。
Soft and hard segments in polymer chains were well-distributed when acrylate modification and emulsification performed at the same time.
丙烯酸改性与乳化同时进行时，其聚合物链结构中软、硬段分布均匀；
When modification graft before emulsion dispersion in solvent was adopted, micro phase separation of soft and hard segments in molecular chains was enhanced greatly and its thermo-stability improved .
而采用在溶剂相中改性接枝再乳化分散的方式，分子链中软硬段的微相分离加剧，热稳定性提高。
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