sulfur polymer worksheet - Tagged

Draw structural formulas for organic products A and B in the window below. -CI Li pentane H₂O A B • Draw only products having the organic portion of the original alkyl halide. • Draw carbon-lithium bonds using the single bond tool. If a structure has a copper-lithium bond, do not draw the lithium. • Separate products from different steps using the →>> sign from the drop-down menu. ? n [ ChemDoodleⓇ

Why are benzene and aliphatic hydrocarbons the best solvents for radical polymerizations?

Draw structural formulas for organic products A and B in the window below. CH3 CH3CCH₂CI _ CH3 Mg ether A A CH3OH B • Draw only products having the organic portion of the original alkyl halide. • Draw carbon-lithium bonds using the single bond tool. If a structure has a copper-lithium bond, do not draw the lithium. Separate products from different steps using the 1 sign from the drop-down menu.

As discussed in the class, the 3D printing process shown below is a special type of stereolithography called CLIP, where an oxygen permeable window is used underneath the vat of resin. Which statement is incorrect regarding CLIP? Build platform- Oxygen permeable window Printed object UV curable resin C. Dead zone - UV light beam Projector a. The oxygen abundance in the proximity of the window quenches the activated molecules hence stopping any polymerization from occurring at the direct proximity of the window b. The dead zone is an unintended outcome of the oxygen permeable window that provides a nonstick surface at the cost of slowing down the print process The dead zone in fact helps speed up the process by eliminating the need for sequential peeling of the adhered part d. The uniqueness of this process is that the entire vat of resin is depleted of oxygen apart from the resin in the proximity of permeable window. This allows for the material to cure in all layers at the same time.

Use the following atomic weights and quantities to calculate the overall % yield of 4-chlorocarbonyl-4'-pentyllbiphenyl. Remember that your yield must be based on the stoichiometry (balance the reaction!), the limiting reagent, and that grams must be converted to moles. Filling out most of the chart will help. Give only two significant digits in your answer. If after rounding the answer is a whole number, do not include a decimal point. C = 12, H = 1, CI = 35.5, N = 14, O = 16, S = 32 formula formula weight milliliters density 4-carboxy-4'-pentylbiphenylthionyl chloride dimethylformamide → 4-chlorocarbonyl-4'-pentylbiphenyl 3.678 1.64 6.860 0.944 grams moles 13.314 7.117 Answer: % yield ?

Use the following reagent table for the reaction of: cyclohexanol + H2 SO4 → cyclohexene Chemical MW (g/mol). Density (g/mL) mmols used Amount used cyclohexanol 100.16 0.9624 1.50 mL Sulfuric Acid 98.08 1.83 1.00 mL cyclohexene 82.14 Based on your answers in the previous two questions, identify what the Limiting Reagent for the reaction is:

2. Write the reaction for the production of the linear polyester (Phthalic anhydride) including the repeat unit for the product. Note. This is a step growth reaction. Please also explain the type of polymerisation occuring in the synthesis of this polyester

Use the following reagent table for the reaction of : cyclohexanol + H2 SO4 → cyclohexene Chemical MW (g/mol) Density (g/mL) mmols used Amount used cyclohexanol 100.16 0.9624 1.50 mL Sulfuric Acid 98.08 1.83 1.00 mL cyclohexene 82.14 Using the information from the previous questions, if 0.95 g of cyclohexene were formed during the reaction, determine the % yield. Answer with 2 decimal places.

Draw the structure of the repeat unit of the polymer that results when this epoxide and this diamine are heated together: diamine epoxide H₂N You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. Do not include lone pairs in your answer. They will not be considered in the grading. • Use R1 groups to indicate the points where the polymer repeats. The R group tool is located in the charges and lone pairs drop-down menu. ۱۰ [ ]# NH₂ ChemDoodleⓇ

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

i just want to know whether i need to calculate for the theoretical yield for this lab report and if so, how i can calculate for it

heat + toluene (solvent)

Based on the answer to my question my follow-up question refers to processing. How does hydrogen bonding interactions affect the processing temperatures of these polymers? And what would we expect to occur? Why does hydrogen bonding affect thermal stabiltiy (thermo-oxidative stability) and affect degradation of the macromolecule. What is the mechanism of this interaction?