Efficient conversion of pentaerythritol with aldehyde or ketone to the corresponding pentaerythritol diacetal or diketal in the presence of ammonium hydrogen sulfate under microwave irradiation without solvent was achieved.

By using paratoluenesulfonic acid as catalyst,pentaerythritol diacetal and Pentaerythritol diketal are synthesized from pentaerythritol,aldehyde and ketone.

Synthesis of pentaerythritol diacetals and diketals catalyzed by methanesulfonic acid;

Synthesis of star-shaped poly(p-dioxanone) by pentaerythritol;

Effect of 4A Zeolite on Property of Flame Retardant PP by Melamine Phosphate/Pentaerythritol;

The factors such as pH value,pressure and time in pressurized hydrolysis of pentaerythrite solution and pentaerythrite mother liquor are studied.

Bis(bromomethyl) 1,3 propanediol as a good reaction type fire retardant was synthesized by some processes such as replacement reaction, decompression separation, purification and drying from pentaerythrite and 40% hydrobromic acid solution in catalysis of glacial acetic acid, with a yield of 80.