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Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene . Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar .
List of some addition polymers and their uses Polymer Abbreviation Properties Uses Low-density polyethylene: LDPE: Chemically inert, flexible, insulator: Squeeze bottles, toys, flexible pipes, insulation cover (electric wires), six-pack rings, etc. High-density polyethylene: HDPE: Inert, thermally stable, tough and high tensile strength
Polypropylene carbonate is used to increase the toughness of some epoxy resins. It is used as a sacrificial binder in the ceramic industry, which decomposes and evaporates during sintering. It has a low sodium content which makes it suitable for the preparation of electroceramics like dielectric materials and piezoelectric ceramics.
[11] [12] Another use of PPG is as a surfactant, wetting agent and dispersant in leather finishing. [13] PPG is also employed as a reference and calibrant in mass spectrometry and HPLC. [14] [15] PPG and derivatives may be used as defoamers in drilling and other applications. [16] [17] It is also used as a primary ingredient in the making of ...
Thermoplastics do not undergo chemical change in their composition when heated and thus can be molded repeatedly. Examples include polyethylene (PE), polypropylene (PP), polystyrene (PS), and polyvinyl chloride (PVC). [16] Thermosets, or thermosetting polymers, can melt and take shape only once: after they have solidified, they stay solid. [17]
Reportedly leachables including plasticizers (i.e. phtalates), whiteners, and heavy metals are more of a concern with PP versus PS plates. [9] Cyclo-olefins (COC) are now being used to construct microplates which transmit near-ultraviolet light, allowing applications like protein assays via absorbance measurements at 280 nm. But, COC has a poor ...
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1-Phenylpiperazine (1-PP or PP) is a simple chemical compound and drug featuring a phenyl group bound to a piperazine ring. [1] The suffix ‘-piprazole’ is sometimes used in the names of drugs to indicate they belong to this class. [2] It is a rigid analogue of amphetamine.