0
What else can I help you with?
What is the structure of divinylbenzene cross-linked polystyrene solid support?
the styrene portion creates linear polymeric structures since styrene is monofunctional. The divinylbenzene is difunctional, so where it is indorporated in a styrene chain, there is one functional group left to react. When this happens in the making of another polystyrene chain, the result is a crosslinked structure. The proportion of divinylbenzene controls the amount of crosslinking. This translates into more or less porosity (allowed permeation in the final polymer) with less or more divinylbenzene.
What is HIPS plastic?
HIPS High Impact Polystyrene is particularly suitable for thermoforming, it is a tough, rigid material and its high impact strength means it can be guillotined, punched, routered or sawn without difficulty.
Is styrofoam the same as polystyrene?
They are made from the same polymer, polystyrene. Usually polystyrene is clear, hard and rigid, for example in CD cases. However, styrofoam is created by blowing air through liquid polystyrene. The bubbles are locked in the polystyrene as it solidifies, giving the syrofoam used in packaging and cups. The reason it is compressible is because the air is compressed, rather than the hard, rigid polystyrene itself.
How much does 1.54 pico mole of styrene weigh?
To calculate the weight of 1.54 picomoles of styrene, you would need to know the molecular weight of styrene. The molecular weight of styrene is 104.15 grams per mole. Once you have the molecular weight, you can use the formula: Weight (g) = Number of moles x Molecular weight. So, for 1.54 picomoles of styrene: Weight (g) = 1.54 x 10^-12 moles x 104.15 g/mol.
Can polystyrene run out?
Yes, polystyrene is a synthetic polymer made from petroleum, so it is not a limitless resource and can technically run out if not managed sustainably. However, recycling and proper waste management can help extend its use and reduce the demand for new production.
Why is the glass transition temperature of polystyrene greater than of polypropylene?
Higher the glass transition temperature of the polystyrene can be attributed to the fact that sterically rigid bulky aromatic moieties like benzene in the styrene compared to that of aliphatic polypropylene
What is the true density of polystyrene?
Polystyrene is a common plastic that most of us encounter dozens of times a day in our travels, most often in packaging. The thing about polystyrene is that it has a number of forms (chemical structures). Consider this chemical formula:C6H5CH=CH2This is (monomer) styrene. If we link a bunch of these together, we end up with poly (many) styrene. Consider this chemical formula:(C8H8)nThis depicts the basic (monomer) styrene with the subscript n to denote that a number of different molecules can be made up. And if you guessed that these molecules have different densities, you'd be correct. In general, the density of polystyrene varies from about 1.06 to 1.12 g/cc, so there is no "true" or precise density for polystyrene.
Main ingredients of polystyrene?
Polystyrene is primarily made from the monomer styrene, which is derived from petroleum or natural gas. It is a synthetic polymer that consists of long chains of styrene units. Various additives are included to enhance properties such as strength, flexibility, and flame resistance.
What is styrene oil?
Styrene is a chemical compound that should not be present in true oil. Many blenders put "chemicals" in oil to extend it or to blend a cheaper price. Styrene is very dangerous in fuel oil because it gums up or locks up fuel oil powered engines.
What is the structure of divinylbenzene cross-linked polystyrene solid support?
the styrene portion creates linear polymeric structures since styrene is monofunctional. The divinylbenzene is difunctional, so where it is indorporated in a styrene chain, there is one functional group left to react. When this happens in the making of another polystyrene chain, the result is a crosslinked structure. The proportion of divinylbenzene controls the amount of crosslinking. This translates into more or less porosity (allowed permeation in the final polymer) with less or more divinylbenzene.
What is HIPS plastic?
HIPS High Impact Polystyrene is particularly suitable for thermoforming, it is a tough, rigid material and its high impact strength means it can be guillotined, punched, routered or sawn without difficulty.
Is styrofoam the same as polystyrene?
They are made from the same polymer, polystyrene. Usually polystyrene is clear, hard and rigid, for example in CD cases. However, styrofoam is created by blowing air through liquid polystyrene. The bubbles are locked in the polystyrene as it solidifies, giving the syrofoam used in packaging and cups. The reason it is compressible is because the air is compressed, rather than the hard, rigid polystyrene itself.
Can you paint polystyrene with super sheen acrylic?
Acrylic will adhere just fine to polystyrene but polystyrene dents and cracks relatively easy and so will your coating of acrylic. The acrylic will give the polystyrene a little more integrity but not much.
How much does 1.54 pico mole of styrene weigh?
To calculate the weight of 1.54 picomoles of styrene, you would need to know the molecular weight of styrene. The molecular weight of styrene is 104.15 grams per mole. Once you have the molecular weight, you can use the formula: Weight (g) = Number of moles x Molecular weight. So, for 1.54 picomoles of styrene: Weight (g) = 1.54 x 10^-12 moles x 104.15 g/mol.
Why was methanol an appropriate solvent to precipitate polystyrene?
Methanol is used to force polystyrene OUT of solution. So the simple answer is: you can't. But, there is probably an extreme temperature or pressure that allows polystyrene to remain in solution with methanol present.
Can polystyrene run out?
Yes, polystyrene is a synthetic polymer made from petroleum, so it is not a limitless resource and can technically run out if not managed sustainably. However, recycling and proper waste management can help extend its use and reduce the demand for new production.
What is synthetic rubber?
It is rubber made by man. There are a number of types so I suggest you look at the related links. Styrene- Butadiene Rubber (SBR) is common but there are many others.
