The reason for the statement that, the long-chain hydrocarbons or addition polymers of alkene molecules form liquid crystals or not, is to be explained. Concept introduction: Polymers are the molecules with high molecular masses that are made up of repeating monomer units. Polymers are the backbone of four major chemical industries, viz., plastics, elastomers, fibers, and paints and varnishes. On the basis of mode of polymerization , polymers have been classified into two subgroups that are addition polymers and condensation polymers . Addition polymers are formed when there is a movement of electrons from multiple bonds into new single bonds between molecules without elimination of small molecule. Polymers that are formed by elimination of small molecules like H 2 O is a condensation polymer . The liquid crystals act like conventional liquids and solid crystals. The liquid crystals have the ability to flow and take the shape of the container like liquids and have a regular arrangement of particles in the lattice like solids. The liquid crystals have three types of orders called nematic, smectic, and cholesteric. Some substances exhibit liquid crystal behavior when they are melted from solids. As the temperature increases, the solid liquifies but retains some order in one or two dimensions.

Question

Want to see the full answer?

Answer 1

Question

Chapter 12, Problem 15QP

Interpretation Introduction

Interpretation:

The reason for the statement that, the long-chain hydrocarbons or addition polymers of alkene molecules form liquid crystals or not, is to be explained.

Concept introduction:

Polymers are the molecules with high molecular masses that are made up of repeating monomer units. Polymers are the backbone of four major chemical industries, viz., plastics, elastomers, fibers, and paints and varnishes.

On the basis of mode of polymerization, polymers have been classified into two subgroups that are addition polymers and condensation polymers.

Addition polymers are formed when there is a movement of electrons from multiple bonds into new single bonds between molecules without elimination of small molecule.

Polymers that are formed by elimination of small molecules like H2O is a condensation polymer.

The liquid crystals act like conventional liquids and solid crystals.

The liquid crystals have the ability to flow and take the shape of the container like liquids and have a regular arrangement of particles in the lattice like solids.

The liquid crystals have three types of orders called nematic, smectic, and cholesteric.

Some substances exhibit liquid crystal behavior when they are melted from solids.

As the temperature increases, the solid liquifies but retains some order in one or two dimensions.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Arrange the solutions in order of increasing acidity. (Note that K (HF) = 6.8 x 10 and K (NH3) = 1.8 × 10-5) Rank solutions from least acidity to greatest acidity. To rank items as equivalent, overlap them. ▸ View Available Hint(s) Least acidity NH&F NaBr NaOH NH,Br NaCIO Reset Greatest acidity

1. Consider the following molecular-level diagrams of a titration. O-HA molecule -Aion °° о ° (a) о (b) (c) (d) a. Which diagram best illustrates the microscopic representation for the EQUIVALENCE POINT in a titration of a weak acid (HA) with sodium. hydroxide? (e)

Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single file upload below: Review of this week's reaction: H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O ---> H₂NC(=NH)N(CH3)CH2COOH (creatine) Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts) Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts) Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3 pts) NH2(C=NH)-N(CH)CH2COOH This bond Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem Q9 is valid). (4 pts) Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past…