第二种聚酰亚胺聚合物是芳香族四酸二氢化物与芳香族二异氰酸酯反应生成的。
The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate.
苯基、氰基、酯基、羧基在反应中不受影响。因此,这一聚合物催化剂特别适用于和芳基、腈基、羧基和酯基相连的双键的氢化。
Thus, this polymer catalyst is especially suited to the hydrogenation of the ethylenic double bonds which are linked to aromatic, cyano, carboxyl and ester groups.
为抑制聚合物为基础的污染沉积物的形成方法,通常在碱洗的碳氢化合物形成的披露。
A method for inhibiting the formation of polymeric based fouling deposits normally formed during the caustic washing to hydrocarbons is disclosed.
通过1H NMR和IR对单体和聚合物的结构进行了表征,并证实了聚合物的硅氢化程度近于完全。
The chemical structure of the monomer and the polymer was confirmed by 1H-NMR and IR measurements and the full hydrosilation reaction of the polymer was confirmed.
双氢化牛脂基仲胺主要用于除草剂、二氧杂环乙烷聚合物的稳定剂、纤维的防水剂、抗静电剂和柔软剂等方面。
Mainly used in herbicide, two heterocyclic oxygen ethane polymer stabilizers, waterproofing agent, antistatic agent and softening agent of fiber, etc.
采用序列法制备氢化丁腈橡胶(HNBR)/聚甲基丙烯酸酯互穿聚合物网络(IPN)阻尼材料。
Abstract :Sequential interpenetrating polymer networks(IPNs) based on hydrogenated nitrile rubber(HNBR) and various polyalkyl methacrylates were synthesized.
氢化可可脂肪酸与硬脂酸、1,3 -丁二醇和1,6 -己二醇的聚合物。
Fatty acids, coco, hydrogenated, polymers with adipic acid, 1, 3-butanediol and 1, 6-hexanediol.
为抑制聚合物为基础的污染沉积物的形成方法,通常在碱洗的碳氢化合物形成的披露。
A method for inhibiting the formation of polymeric based fouling deposits normally formed during the caustic washing of hydrocarbons is disclosed.
用KBH_4与717~#阴离子交换树脂反应制备了聚合物支载的硼氢化试剂(BER)。
Polymer-supported borohydride reagents (BER) have been prepared by reaction ofKBH_4 with 717 ~# anion exchange resin.
用KBH_4与717~#阴离子交换树脂反应制备了聚合物支载的硼氢化试剂(BER)。
Polymer-supported borohydride reagents (BER) have been prepared by reaction ofKBH_4 with 717 ~# anion exchange resin.
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