PLA, a polyester-based synthetic polymer, decomposes in our body fluid and separates into its constituent acids and alcohol. This acid in the body can cause inflammation. What would you recommend to overcome this disadvantage? b) The late decomposition of PLA, which is a biodegradable and hydrophobic polymer, in body fluid may create a disadvantage in applications where faster degradation is desired. What would you suggest to do to resolve this situation? Please explain.

Q: Poly(vinyl alcohol), PVA, is produced from poly(vinyl acetate) by converting the acetate groups into…

A:

Q: The two main subdivisions of polymers are and The main difference between the two types of polymers…

A: Solution :    The polymer is a larger molecule that is made up of smaller repeating units. Their…

Q: Q1) Define terms polymers, elastomers, and synthetic fiber. Also explain in detail the industries…

A: Solution - Polymers - A polymer is  class of natural or synthetic substances which is  made up of…

Q: a. What are the current advancements of polymer technology? b. Are polymers today becoming more…

A: Plastic was previously viewed as the best innovation ever made by humans. The industries require…

Q: Polymers can be cross-linked using a variety of reactions that create connections between different…

A: To cross-link the polystyrene derivative with terephthaloyl chloride and AlCl3, one repeat unit of…

Q: Need the mechanical properties of the polymers

A: The polymer is a larger macro-structure that is composed of smaller molecular units repeated over a…

Q: Another vanation on this type of polymer is used in hair gels. In these, the polymer chains are…

A: As you have posted a question with multiple questions, we will solve the first question for you. To…

Q: In reference to cloth or fiber, the term acetate usually means cellulose acetate, a semisynthetic…

A:

Q: please solve question 2, Organometallic Chemistry

A: In solid sate, Zn(CH3)2 exists as a Polymer due to C-Zn-C linear arrangement, while in the case of…

Q: 1.Consider the polymerization of the following monomers: H2N- -NH2 CI (a) Draw the repeat unit of…

A: Part a :-

Q: Explain the following observations:  (i) Kevlar has an extremely high tensile strength and melting…

A:

Q: Illustrate the Synthesis and degradation of polymers ?

A: Polymers have very high-molecular-weight substances. It consists of hundreds to thousands of…

Q: (a) A sample of linear polyethylene is dissolved in a large excess of xylene at 130 C, and dilute…

A: (a) The fine white suspension obtained after cooling the diluted solution of linear polyethylene in…

Q: From examination of the molecular models i–v, choose thesubstance that (a) can be hydrolyzed to form…

A: (a) The substance shown by molecular model (i) can be hydrolyzded to form a solution containing…

Q: Which of the following is not a man-made polymer? a. polypropylene b. teflon c. polyurethane d.…

A:

Q: (4) Describe the synthesis of plastic especially polyethylene, 1,1- dichloroethane, and polyvinyl…

A: Answer - According to the question - Synthetic plastic is made by a reaction known as…

Q: (b) Toluene reacts with and bromine in different conditions of reaction. Write the chemical equation…

A: The structure of toluene is as follows: Toluene contains two types of hydrogen atoms, hence it…

Q: A polymer closely related to PET is PBT, which is made from terephthalic acid and…

A: The answer for the subpart a) is given below. Kindly post the other subparts as separate questions.…

Q: a) What is the difference between high- and low-density classifications of polyethylene?

A: A) For the preparation of polythene, the monomer used is ethene . Monomers is the smallest repeating…

Q: Shown below is the ε-caprolactone monomer where the biopolymer polycaprolactone (PCL) is synthesized…

A:

Q: The reason for the development of polycrystalline material is because ( one sentence only)

A: Answer - polycrystalline material - A polycrystalline material is comprised of many small…

Q: 1) Discuss how polymerization changes the properties of any ensemble of amino acids so that a…

A: Proteins may be defined as compounds of high molar mass consisting largely or entirely of chains of…

Q: Poly(vinyl alcohol), a hydrophilic polymer used in aqueous adhesives, is made by polymerizing vinyl…

A: CH2=CH- is known as vinyl group. If acetate group is attached to it, it is known as vinyl acetate…

Q: How many bands do primary amines have in the region of 3200-3400 om in the inirared? a) zero b) one…

A: We have to give the answers of the following questions.

Q: Write the hydrolysed products of(i) maltose (ii) cellulose.

A: Hydrolysis: Addition of water molecule in reaction is called as hydrolysis.

Q: Explain the following observations:  (i) Kevlar has an extremely high tensile strength and melting…

A: To explain the given observations:

Q: Polystyrene synthetic polymer Monomer - styrene It is clear,hard,brittle and rigid Use- rigid…

A: Synthetic polymers are polymers that do not occur naturally in nature and are made by scientists and…

Q: in the process of condensation polymerization, monomers are involved which funtional groups of:  A)…

A: Given options, A) Different kind B) All group C) Same kind D) None of the above

Q: the monomer units of amylose, the main component of starch, andglycogen, the animal stored…

A: Answer -  Amylose - Amylose molecules tend to form coiled springs due to the way in which the the…

Q: Which of the following statement is wrong for polymer additives? O a. It will not influence chemical…

A: Polymer additives are used to improve the usefulness of polymer and to protect polymers for long…

Q: Talk about polystyrene in general (detailed explanation), while writing references cited from it

A: Polystyrene (PS): Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard,…

Q: During our lectures on polymeric materials, I used polyethylene as an example because of its very…

A: Hydrogen peroxide works as an initiator in the free radical polymerization of polyethylene. It has a…

Q: (d) A sample of head-to-tail polypropylene was found to have an average molar mass of 33,000.…

A: We have to predict the average degree of polymerization.