Plastics and Polymers

The monomers that result from the hydrolysis of proteins are amino acids. Proteins are made up of long chains of amino acids linked by peptide bonds. Through hydrolysis, these peptide bonds are broken, resulting in the release of individual amino acids.

The first synthetic plastic was called Bakelite, invented by Leo Baekeland in 1907. It revolutionized the industry by offering a durable, heat-resistant, and versatile material for various applications.

Polymer glycogen acts as an energy storage molecule in animals, while polymer starch fulfills this function in plants. Both polymers consist of glucose monomers linked together in a chain-like structure, allowing for quick breakdown and release of energy when needed.

Polysaccharides are biological polymers that consist of many simple monosaccharides joined together. This process involves linking monosaccharide units via glycosidic bonds to form complex carbohydrates like starch, cellulose, and glycogen. These polysaccharides serve as energy storage molecules and structural components in living organisms.

My English Bulldog ate saran wrap. We initially did not know what was wrong with her. She threw up for the second time and that is when we noticed the saran wrap. She continued to throw up clear liquids with white foam then after about the 10th time her liquid vomit started to turn a beige/brown shade (indicator of blood). We took her to the vet and got x-rays and an ultrasound. Nothing appeared with either of these scans. All together she threw up 17 times. We admitted her in the animal hospital so she could have 24 hour care and intravenous. She seemed okay the following 9 hours after admission but then she started having bloody diarrhea. Behaviorally she presented well, although a bit tired. We discharged her after 2 nights stay at the animal hospital and she was prescribed meds to help her not vomit and help with the diarrhea and irritated stomach. All seemed well for a couple days then we noticed she developed a rash on her belly (round red spots). These spots would come and go a couple times a day. Nearly 2 weeks after the initial incident, she stopped getting the spots and then passed another 2 pieces of additional saran wrap in her feces. Since she passed the saran wrap she has completely recovered. We are not sure what may have been in the saran wrap she ate but we are fairly certain that the saran wrap was the root cause of the throwing up, diarrhea and probably the rash. At the end of the day her body processed it and when she finally expelled it, she recovered.

With any food, and air, small amounts of bacteria are present. When you put anything in a sealed container for too long, the bacteria will continue to grow and then multiply faster as humidity and decay starts occurring.

Also, even though plastic bags seem air-tight, microscopically, air can slowly work it's way in. A plastic container will simply slow the rate the food will deteriorate, it won't stop it.

Polymers can contain any element on the periodic table, but the backbone of the polymer is usually based on either carbon or silicon (other elements can form polymer backbones e.g. boron-nitride but they are rare)

Because when a company wants to sell something, they will always have competition with other companies selling the same product. To attract customers the company must lower their price, but if they reduce their price their profits will also be reduced. Hence, they must use a cheaper material to build and that is often plastic. And also cos they are cheap bastards, if this was my worlds, everything would be made from carbon fibre and industrial diamond and polycarbonate..! =D

Polymerization is the method of joining monomers together to form giant molecules known as polymers. This process involves linking smaller monomer units through chemical reactions to create long chains or networks of repeating units. Polyethylene and polystyrene are examples of polymers formed through polymerization.

Plastic Mark's store policy may include guidelines on returns, exchanges, warranties, refunds, and payment methods. It's recommended to check their website or contact their customer service for specific details on their policies.

Proteins are polymers of molecules called amino acids. These amino acids are linked together in a specific sequence to form long chains, which then fold into complex structures to carry out various functions in the body.

Both are made from smaller subunits that are joined by covalent bonds. In the case of proteins, these subunits are called amino acids. They are joined by special covalent bonds called peptide bonds. In the case of nucleic acids, the subunits are called nucleotides, which are a combination of a sugar (ribose or deoxyribose), phosphate group, and one of four possible bases (adenine, thymine, guanine, or cytosine). The nucleotides are covalently bonded along the "ladder" of the DNA molecule. Another feature of polymers is that the covalent bond that links the subunits (or monomers) is formed by dehydration synthesis, that is, a removal of a water molecule.

The energy required for DNA replication or polymerization is derived from hydrolysis of the 5'- triphosphate group of a free dNTP.
dNTP stands for all four tri phospate nulceotides such as dATP, dCTP, dTTP, dGTP as they are the building blocks of the DNA molecule. These nucleotides are added to the 3'- hydroxyl group of the growing chain in complementary to template strand.
ATP on the other hand is not involved in DNA synthesis as it is not deoxyribonucleotide, and NTPs (ATP,GTP,UTP,CTP) are the components of RNA.

There are several companies that make tube expanders for medical plastic tubing, including Nordson MEDICAL and Meridian Laboratory. These tube expanders are used in various medical applications to ensure precise sizing and shaping of tubing.

Plastic is used around a house foundation before winter to act as a vapor barrier and help prevent moisture from seeping into the foundation. This can help reduce the risk of water damage, mold growth, and heat loss, ultimately improving the overall energy efficiency and durability of the home.

When alkenes are used to make polymers, a process called polymerization occurs where the alkene monomers (such as ethylene or propylene) undergo a chemical reaction to form long chains of repeating units. This reaction can be initiated by heat, light, or a catalyst, resulting in the formation of a polymeric material with desirable properties for various applications.

Kevlar (Aromatic Polyamides) is used in tire reinforcement.

Polybutadiene (Butadiene Rubber, BR) is used for the carcass and side wall.

Natural rubber is a polymer, and they put polyurethane in tire rubber too. While aramids like kevlar are often used in car and motorcycle tires, nylon (less expensive and works fine) is used in bicycle tires.

Yes, Dacron is an addition polymer. It is a synthetic polymer produced through the addition polymerization of ethylene glycol and terephthalic acid. This process creates long chains of repeating units, known as polymers, which are characteristic of addition polymerization.

One example of a polymer with a complex structure is a dendrimer. Dendrimers are highly branched macromolecules with a symmetrical and well-defined architecture. They have unique properties due to their multivalent nature and can be tailored for various applications such as drug delivery and nanotechnology.

The phobia of plastic bags blowing around is called "plastic bag phobia" or "plastic bag anxiety." It can stem from a fear of environmental harm, suffocation, or sudden movements. Treatment may involve therapy to address underlying fears and coping mechanisms for managing anxiety triggers.

Plastic bags can be convenient for carrying items and are often reusable, reducing the need for single-use bags. They are lightweight and cost-effective, making them popular among retailers and consumers.

The building blocks of plastics are called monomers. These are small molecules that can join together to form long chains known as polymers through a process called polymerization.