Explain a diol to form a polyurethane

Assignment Help Chemistry

Reference no: EM13287984

Which of the following combiantions of terms best describe the polymerization of a diisocyanate (OCN-R-NCO) and a diol to form a polyurethane? A) step growth condensation B) chain growth condensation C) chain growth addition D) step growth addition

Reference no: EM13287984

Questions Cloud

What is the current of the lamp : A 140 ? lamp, a 25 ? electric heater, and a 57 ? fan are connected in parallel across a 137 V line. What is the current of the lamp

Define what is the partial pressure of co : A mixture of 0.156 moles of C is reacted with 0.117 moles of O2 in a sealed 10.0L vessel at 500.K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO

Design a conditiong circuit that takes an input from sensor : design a conditiong circuit that takes an input from a temp sensor and coverts it to a voltage. The input is a function of temp and the output changes with temp. The op-amp is fine but I dont understand how to incorporate the temperature into this..

What is your total nominal return on this investment : Today, the required return on this stock is 8 percent and you just sold all of your shares. What is your total nominal return on this investment?

Explain a diol to form a polyurethane : Which of the following combiantions of terms best describe the polymerization of a diisocyanate (OCN-R-NCO) and a diol to form a polyurethane

What is the dipoles angular velocity : An electric dipole consists of 1.50g spheres charged to \pm 2.30nC at the ends of a 6.00cm long massless rod. What is the dipole's angular velocity at the instant it is aligned with the electric field

Design a square wave oscillator using the op-amp : Design a square wave oscillator using the op-amp that provides the output signal with amplitude of 4V to 6.5V and a frequency of 1kHz.

What distance did she cover during the entire period : During a fun run a girl runs for 12 s moving 2.7 m/s. She then accelerates at 0.5 m/s^2 over the next 25 m. What distance did she cover during the entire period

Mathematical repressentation of energy balance equation : Write a mathematical repressentation of the energy balance equation for the Earth. Solve your energy balance equation for the temperature of Earth, also commonly called the "effective" radiating temperature of the Earth. Convert your answer to farenh..

User Account

All Pages