bond, atoms A with free places for electrons on their outer shell (valence electrons) form a bond with other atoms B which have just the number of valence electrons matching the free places on their outer [...] outer shell. The "supernumerary" electrons of atoms B thus move to the free places of atoms A. As a result, however, there are now too many electrons at atoms A and too few at atoms B. In the molecule A=B [...] for this type of molecule; it has a fully symmetric structure so that the dipole moments of the 4 C-H-bonds cancel each other. Methane and all its polymers are non-polar.
Glossary of surface technology Home Process technology Glossary Polybutene Polybutene Like polyethylene (PE) and polypropylene (PP), polybutylene (also called polybutylene PB) belongs to the family of
Glossary of surface technology Home Process technology Glossary Polyacrylonitrile Polyacrylonitrile Polyacrylonitrile (PAN) is the main component of acrylic textile fibres. Polyacrylonitrile is the ma
technology Home Process technology Glossary PCB PCB Acronym for printed circuit board , carrier of the electronic components of the circuits in an electrical device. In the production of printed circuit boards
Glossary of surface technology Home Process technology Glossary Perfluorinated chemicals Perfluorinated chemicals Synthetically produced, long-lasting organic chemicals that do not occur in nature. Us
Glossary of surface technology Home Process technology Glossary Reduction of oxygen permeability Reduction of oxygen permeability Plasma polymerisation can be used to apply a barrier layer that preven
Glossary of surface technology Home Process technology Glossary PFC PFC Abbreviation for perfluorinated chemicals. Using plasma, these chemicals can be applied in minute quantities as a moisture barri
Glossary of surface technology Home Process technology Glossary Nanostructures
Glossary of surface technology Home Process technology Glossary Functionalisation Functionalisation Exposing a plastic surface to a plasma results in a modification of the chemical composition and the
Glossary of surface technology Home Process technology Glossary Thin-film coating process Thin-film coating process Plasma technology can be used to produce thin layers with a thickness of typically b