Polymer chemistry

chemically to produce a large chain-like or network molecule (www.britannica.com). Through polymerization, a polymer is produced. A large number of small molecules react to produce a small number of large molecules. The reactant of polymerization is a monomer. Monomers, meaning "one part" or "one member," are small units that make up giant molecules (Exploring Giant Molecules). The product is a polymer. There are two main types of polymerization reactions. They are addition polymerization and…

polyacrylate is a polymer with a unique structure, that chemists are leveraging in a variety of lucrative industrial applications. Sodium polyacrylate possesses a unique chemical property: the ability to absorb incredible amounts of water. It can absorb 300 to 800 times its weight in water (Superabsorbent Polymers). Industrial chemists have taken advantage of the polymer’s special function, and have incorporated it into dozens of different products. In fact, the industry behind superabsorbent…

According to cerakoteguncoatings.com (2017), Cerakote is a Polymer-Ceramic coating that can be applied to metals, plastics, polymers and wood. Cerakote is used on; knives, weapons, tools, some electronic covers, glasses and anything durable that needs a tough coating. This ceramic thin-film coating is intended to offer an appealing finish with unequaled performance. The ceramic coating of Cerakote provides the advantage of having extraordinary; adhesiveness, pliability, corrosion and wear…

Before we can talk about what a polymer is, we need to know about ATOMS and ELEMENTS and MOLECULES. To learn about atoms and elements and molecules, click here. Paul Lemur This is PAUL LEMUR. He's a lemur named Paul. Polymers are made up of many many molecules all strung together to form really long chains (and sometimes more complicated structures, too). What makes polymers so fun is that how they act depends on what kinds of molecules they're made up of and how they're put together. The…

How this fact neoprene? The wetsuit is made by a set of fabrics neoprene (it is a type of synthetic rubber with micro bubbles) that sewed or sealed to each other whose task is to try to prevent the passage of water or heat loss when one is wearing. Today the technology advanced a lot and we almost waterproof neoprene. Who invented the wetsuit? But this was not always so. The first sketches that were found on something like a neoprene date from the time of Leonardo da Vinci. Much later, Hugh…

6-didodecylbenzo[1,2-d:4,5-d ']bis(thiazole)) [P2] polymer by replacing the 2,5-bis(trimethylstannyl)thiophene with 2,5-bis(trimethylstannyl)selenophene, as shown in Fig. 1. The number-average molecular weights (Mn) of P1 and P2 were 15,710 and 26,220, with polydispersity indexes (PDI) Đ of 1.24 and…

(Polyether ether Ketone): This is a transparent thermoplastic polymer used mainly in engineering…

used material for packaging in almost every industry. The word ‘plastic’ comes from the Greek plastikos which means easily shaped (Robertson, 2013). Plastic is the combination of many molecules that linked together as one long chain which made from polymers: poly (Greek) means many and meros (Greek) means part (Robertson, 2013). Raw materials of plastic are called feedstock which come from natural and synthetic resources, such as crude oil, natural gas, coal, cellulose, starch and proteins…

of the four macromolecules. Carbon's molecular structure allows it to bond in many different ways and with many different elements. A Monomer is an atom or small molecule that may bind chemically to other monomers to form a Polymer Different monomers make up a polymer. Polymers combine to make a molecule, and molecules combine to make macromolecules. Carbohydrates Carbohydrates are molecular compounds made from just three elements: carbon, hydrogen and oxygen, usually in a ratio of 1:2:1.…

Reservoir Systems consist of a hollow inner core and a polymer membrane, there to control the rate of drug diffusion. Drug diffusion across the membrane is rate limited and controls general drug release rate (Bajpai et al. 2008). For reservoir systems drug release normally remains steady resulting in a zero order profile (Raval, Parikh and Engineer, 2010). Another technology is called the Multiparticulate drug delivery system which consists of microencapsulated granules/beads containing drug…