The dicarboxylic acid, ethanedioic acid, can form a polyester with 1,2-ethanediol. To illustrate the growth of the polymer, draw the tetramer that would form if two ethanedioic acid molecules reacted with two 1,2-ethanediol molecules.
2 OH-CH2-CH2-OH + 2HOOC-COOH ---> (C4H4O4)4
dicarboxilic acid + diol ----> polyster + water.
polyster is formed by condensesion reaction between these two 2 OH-CH2-CH2-OH , 2HOOC-COOH
2 OH-CH2-CH2-OH + 2HOOC-COOH---> -(-O-CH2-CH2-O-OC-CO-)2 + HOH
The dicarboxylic acid, ethanedioic acid, can form a polyester with 1,2-ethanediol. To illustrate the growth of...
Which of two diols: ethan-1,2-diol or 2,2-bis(4-hydroxyphenyl)propane would you choose for polycondensation with dicarboxylic acid, if you want to obtain: a) Transparent polyester b) Polyester with higher Tg
Compound A is a novel polyester amide) copolymer that can be used as a bioabsorbable coating for the controlled release of drugs. A is a copolymer of four monomers, two of which are amino acids or amino acid derivatives. The body's enzymes recognize the naturally occurring amino acids in the polymer backbone, allowing for controlled enzymatic breakdown of the polymer and steady release of an encapsulated drug. Draw the four monomers used to synthesize A in the order that they...
1. A. Draw out the polymer made from 3 molecules of propanedioic acid and 3 molecules of ethane-1,2-diamine B. What's the by-product of this reaction? C. Break up polyester, below, into its monomers n
4. Build a model of the 1,2-ethanediol molecule. a. Identify the electron-pair and molecular geometry around each carbon and oxygen atom. b. What are the bond angles for H-C-H? For H-C-C? For C-C-O? For C-O-H? c. Draw two different structures of the molecule in which the –OH groups on the two carbon atoms have different orientations with respect to each other. Which structure is more stable? Explain your reasoning (Hint: What factors contribute to the stability of a structure?). Can...
which of the following would give be RM-016 Which of the following would give benzene-1,2-dicarboxylic acid upon treatment with potassium permanganate? A B С D Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer a A b B c d D Unanswered Save
The amino acid glycine can be condensed to form a polymer called polyglycine. Draw the repeating monomer unit. Please answer with explanations and the steps for each part of the question.
RM-Q16 Which of the following would give benzene-1,2-dicarboxylic acid upon treatment with potassium permanganate? A B с D Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. а А b B с с d D RM-033 Please match the reagents and steps. Letters may be used more than once. 2 3. ОН ОН 4 OH a) H20 cat. b) HO OH OH cat H c) 1) LAIH. 2) H30 Drag and drop...
How would I calculate the theoretical yield of endo-cis-norbornene-5,6-endo-dicarboxylic anhydride and endo-cis-norbornene-5,6-dicarboxylic acid? Can you please show me step by step? Can you show me the balanced chemical equation (with molecular formulas, not the pictures) with the mole ratios as well? How do we figure out the limiting reagent? Can you also show how to convert mL to grams for cyclopentadiene, if needed? We used: 2g of maleic acid 6mL of ethyl acetate 6mL of ligroin (hexanes) 2mL of cyclopentadiene...
12. Formic acid (HCOOH) is an irritating chemical present in the venom of some ant species and in the secretion released from some stinging nettles. a. Draw the Lewis structure of formic acid. Include double bond(s) and lone pair(s). b. Formic acid can form dimers in which two molecules are paired by mutual hydrogen bonding. Draw a dimer of formic acid, clearly showing and labeling the hydrogen bonds between molecules. c. Formic acid may deprotonate to form the formate ion...
1) Nylon [6.10] can also be prepared starting with the diacid sebacic acid, a shelf-stable white solid with no hazardous vapors. Propose a synthesis of Nylon starting with sebacic acid. 2) The strength of nylon fibers comes from the hydrogen bonding between polymer strands. Draw two nylon [6.10] strands and illustrate the hydrogen bonding between them. Show the work