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；

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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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The blending mechanical modification and blending process modification of soft and hard HPVC were studied systematically.

系统地研究了HPVC软质材料、硬质材料的共混力学改性和共混加工改性。

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