Questions without answers in Polymer Technology

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

An insulating polymer is used as a dielectric medium between two capacitor plates. The dielectric constant of the polymer is $5.0$ and the permittivity of vacuum is $8.85...

Select the correct option to match the Polymer to its Major polymeric constituent from the table given below:PolymerMajor polymeric constituent$\text{P}$Natural rubber$\t...

Select the correct option to match the Compound/Additive to its most suitable Function from the table given below:Compound/AdditiveFunction$\text{P}$Azocarbonamide$\text{...

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...

Which of the following options is/are used to plasticize poly(vinyl chloride) (PVC)?Addition of vinyl acetate comonomer during the synthesis of PVCChlorination of PVCAddi...

Equimolar mixture of terephthalic acid and butylene glycol was taken to synthesize a polyester. The reaction was stopped at $99.6 \%$ conversion of the acid monomer. The ...

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

Match the $\textbf{Polymer}$ with the most suitable $\textbf{Monomer combinations}$ from which it is synthesized.$\begin{array}{|l|l|l|l|} \hline& \textbf{Polymer} && \te...

​​​Thermoplastic Polyurethane and Polyamide $6$ both contain amide linkages, but when compared to Polyurethane, Polyamide $6$ shows higher melting point due to $\_\_\_\_\...

​​​​​Which option(s) correctly match(es) the $\textbf{Class of additives}$ used during polymer compounding with the corresponding $\textbf{Chemicals}$?$$\begin{array}{|l|...

​​​In a set of copolymerization reactions, the following monomer reactivity ratios ($\textbf{r 1}$ and $\textbf{r 2}$) were found for different cases.$$\begin{array}{|c|c...

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...

A rubber contains $70 \mathrm{wt} \%$ butadiene (molar mass $=54 \mathrm{~g} / \mathrm{mol})$, $20 \: \mathrm{wt} \%$ isoprene (molar mass $=68 \mathrm{~g} / \mathrm{mol}...

​​​​Which of the following is the most suitable flexible packaging laminate for dry fruits?$\textsf{PET/LDPE}$$\textsf{PS/LDPE}$$\textsf{BOPP/LDPE}$$\textsf{Nylon/LDPE}$

The propagation step of a free radical copolymerization is represented by the following possible reaction steps:$\text{P1}$: $M_{1}^{*}+M_{1} \rightarrow M_{1}^{*}, \quad...

Match the following additives to their respective functions for poly$\text{(vinyl chloride)}$ compounding.AdditiveFunctionP. Dibutyltin maleate1. LubricantQ. Epoxydized s...

Biaxially oriented poly$\text{(propylene)}$ exhibits high clarity because layering of the crystalline structuresdecreases the variation in refractive index across the fil...

\begin{tabular}{|c|c|c|c|c|}\hline \multirow[t]{6}{*}{ Q. 116} & \multicolumn{4}{|c|}{\begin{tabular}{l}Among the options given, identify the correct match between the po...

\begin{tabular}{l|l|}Q. 118 & Choose the correct option that best correlates the graphs with the polymerization \\methods. \\\hline& $\mathrm{P}$ - living polymerization;...