The Application of BP Neural Network Based PID Controller in VAC Synthesis Mid-Temperature Control System;

Problems of low recovering efficiency of acetaldehyde and high extraction load existed in the purification process of present VAc production of Sichuan Vinylon Works with acetylene route were investigated based on theoretical analysis and computer process simulation.

The methods and skills:drawing organic molecule structural formula with drawing-procedures in the Windows operating system;

Study and design of software of flash butt welding process control and data management based on WINDOWS;

Schedule Strategy Research of Implementing the Real-time Multi-task Processing Based on Windows;

A copolymer, poly-methyl methacrylate-vinyl acetate (PMMA-VAc), was synthesized by emul- sion polymerization with methyl methacrylate (MMA) and vinyl acetate (VAc) as monomers.

PROPERTY AND APPLICATION OF E/VAC;

STUDY ON THE GRAFTING OF MALEIC ANHYDRIDE ON E/VAC BY REACTIVE EXTRUSION;