Recent questions tagged chemistry-of-high-polymers

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...

Resol is produced by reaction of $\_\_\_\_\_\_$.phenol with an excess of formaldehyde in presence of a base catalystformaldehyde with an excess of phenol in presence of a...

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 ...

​​​Crystallization is favored in polymer melts when the chain entanglement is $\_\_\_\_\_$ and only polymers with $\_\_\_\_\_$ molecular arrangement can crystallize.maxim...

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...

​​​​The 'unperturbed dimension' of the polymer chain is represented as,$$\left(\overline{r_{o}^{2}}\right)^{1 / 2} \propto \bar{l}(n)^{1 / 2}$$where,$\left(\overline{r_{o...

Titration was used to determine the molar mass of two linear monodisperse polymers $\text{A}$ and $\text{B}$. Both the polymers possess the same repeat unit and contain a...

Melting phenomenon in a semi-crystalline polymer is a __________ order phase transition.zerothfirstsecondthird

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

If a given poly(ethylene) sample with specific volume, $v=1.042 \times 10^{-3} \mathrm{~m}^{3} \mathrm{~kg}^{-1}$ shows:specific volume of the crystalline fraction, $v_{c...

The dilute solution viscometry data for two samples of a polymer with two different molecular weights are shown in the figure, where $\eta_{s p} / c$ has been plotted aga...

pH of the water in the oceans is/are directly affected by:water temperaturewater salinitytotal alkalinitywater pressure

\begin{tabular}{|l|l|}\hline Q.110 & Which one of the monomers given is used in the synthesis of cellulose? \\\hline & \\\hline& Fructose \\\hline& Lactic acid \\\hline& ...

\begin{tabular}{l|l}Q. 122 & \begin{tabular}{l}Among the options given, identify the correct pair(s) of catalyst and co-catalyst \\that form a Ziegler-Natta catalyst.\end...