CHEMISTRY GLOSSARY
heat capacity → toplinski kapacitet
Heat capacity is defined in general as dQ/dT, where dQ is the amount of heat that must be added to a system to increase its temperature by a small amount dT. The heat capacity at a constant pressure is Cp = (∂H/∂T)p; that at a constant volume is CV = (∂E/∂T)V, where H is enthalpy, E is internal energy, p is pressure, V is volume, and T is temperature. An upper case C normally indicates the molar heat capacity, while a lower case c is used for the specific (per unit mass) heat capacity.
polycondensational polymer → polikondenzacijski polimer
Polycondensational polymers are compounds which are obtained by condensation polymerization with successive repetitions of the condensation reaction.
propagation → propagacija
Propagation is the step in a polymerization mechanism, where new monomer molecules are added to the growing polymer chain in the free radical process.
protein → bjelančevina
Proteins are natural organic compounds of animal or herbal origin, essential in diet. They are natural polymers developed from a crowd of interconnecting monomers of amino acids, with relative molecular masses amounting up to a few million.
specific heat → specifični toplinski kapacitet
Specific heat is the quantity of heat required to raise the temperature of one gram of a substance by one degree Celsius.
polymer → polimer
Polymer is a substance composed of molecules of high relative molecular mass (molecular weight), the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass (monomers). In most cases the number of monomers is quite large and is often not precisely known. A single molecule of a polymer is called a macromolecule. Polystyrene is light solid material obtained by polymerisation of styrene (vinyl benzene).
polyvinyl chloride → polivinil klorid
Poly(vinyl chloride) or the PVC is hard and resistant homopolymer produced by the polymerization of the gas vinyl chloride [CH2CHCl]. The pure polymer is hard, brittle and difficult to process, but it becomes flexible when plasticizers are added. After mixing with plasticizers, stabilizers, and pigments, the resin may be fabricated by techniques such as calendering, molding, or extrusion into flexible articles such as raincoats, shower curtains, and packaging films. The resin is not plasticized for use in making rigid products such as water pipe, plumbing fittings, and phonograph records.
styrene → stiren
Styrene is an unsaturated hydrocarbon (C6H5OC2H3O) colourless, toxic liquid with a strong aromatic aroma. It is soluble in alcohol, ether, acetone, and carbon disulfide, but dissolves only slightly in water. It is used to make plastics such as polystyrene, ABS, styrene-butadiene rubber styrene-butadiene latex and unsaturated polyesters.
Citing this page:
Generalic, Eni. "Stupanj polimerizacije." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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