The effect of reaction temperature of the formation on thioether dianhydride monomer was discussed.
讨论了温度对硫醚二酐形成的影响。
The pyromellitic dianhydride has particle properties not causing plugging, etc. during its transportation, storage and use.
该均苯四甲酸二酐具有在运输、储存和使用期间不会引起堵塞等的粒子性 质。
Through the condensation polymerization of TAPOB and dianhydride, hyperbranched polyamide acid (HBPAA) and hyperbranched polyimide (HBPI) were prepared.
经过红外表征发现，反应得到了端酸酐基的超支化聚酰胺酸和超支化聚酰亚胺；
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