Recent questions tagged synthesis-manufacturing-and-properties

Which of these methods is/are used for the synthesis of ceramic powders?Sol-gelHydromechanicalThermomechanicalHydrothermal

Which of the following is/are the most appropriate compatibilizer(s) for the ploypropylene/Nylon $66$ blend?Maleic anhydride grafted polystyreneMaleic anhydride grafted p...

Select the correct option to match the Initiator(s) with the Method of polymerization from the table given below:Initiator(s)Method of polymerization$\text{P}$$\mathrm{BF...

​​​Under which combination of conditions does the glass transition of a polymer increase?Increase in molecular weight and increase in plasticizer contentIncrease in plast...

​​​​Polymer " $\mathbf{Z}$ " has a high melting point and it decomposes even before it melts. Hence, it is usually dissolved and subsequently regenerated. Rayon is one su...

​​​Choose the option(s) that correctly match(es) the $\textbf{Zones}$ with their typical $\textbf{Functions}$ in an industrial extruder$$\begin{array}{|l|l|l|l|} \hline &...

The heat of polymerization of ethylene is $25 \mathrm{kcal} / \mathrm{mol}$. The amount of heat generated during the polymerization of $5.6$ $\textsf{kg}$ polyethylene is...

The density of an amorphous polymer is $0.77 \mathrm{~g} \mathrm{~cm}^{-3}$ and that of its crystalline counterpart is $0.99 \mathrm{~g} \mathrm{~cm}^{-3}$. The density o...

Phenol-formaldehyde resin is prepared bycondensation polymerizationcationic polymerizationanionic polymerizationring opening polymerization

Nitrile rubber is the copolymer ofstyrene and butadienestyrene and isoprenestyrene and acrylonitrilebutadiene and acrylonitrile

Feedstock recycling of poly$\text{(ethylene terephthalate)}$ is carried out byhydrogenationdehydrogenationhydrolysisozonation

A unidirectional composite is prepared using $70 \%$ by volume of epoxy matrix and $30 \%$ by volume of carbon fibre. The elastic modulus of the epoxy matrix is $3.5$ GPa...

\begin{tabular}{|l|l|}Q. 112 & Consider the structure of a crosslinked polymer shown in the figure. From the \\options given, identify the monomers that are used in the s...

\begin{tabular}{l|l}Q.125 & \begin{tabular}{l}Among the options given, which method(s) is/are used for the synthesis of atactic \\polystyrene?\end{tabular} \\\hline& Free...