Isosianat
Isosianat adalah gugus fungsi dengan rumus kimia R–N=C=O. Senyawa organik yang mempunyai 2 gugus isosianat disebut diisosianat. Diisosianat diproduksi bersama dengan poliol untuk produksi poliuretan, sebuah polimer.
Reaktivitas
[sunting | sunting sumber]Reaksi dengan nukleofil
[sunting | sunting sumber]Isosianat adalah elektrofil dan mereka reaktif terhadap berbagai macam nukleofil termasuk alkohol, amina, dan bahkan air. Reaksi isosianat dengan alkohol menghasilkan ikatan uretan:[1]
Referensi
[sunting | sunting sumber]- ^ Christian Six, Frank Richter "Isocyanates, Organic" in Ulmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. doi:10.1002/14356007.a14_611
Pranala luar
[sunting | sunting sumber]- NIOSH Safety and Health Topic: Isocyanates, from the website of the National Institute for Occupational Safety and Health (NIOSH)
- Health and Safety Executive, website of the UK Health and Safety Executive, useful search terms on this site — isocyanates, MVR, asthma
- [1] International Isocyanate Institute
- http://www.actsafe.ca/wp-content/uploads/resources/pdf/Isocyanates.pdf Diarsipkan 2016-03-09 di Wayback Machine.
- Isocyanates – Measurement Methodology, Exposure and Effects Isocyanates in Working Life Workshop Article (1999)
- Health and Safety Executive, Guidance Note (EH16) Isocyanates: Toxic Hazards and Precautions (1984)
- The Society of the Plastics Industry – Technical Bulletin AX119 MDI-Based Polyurethane
- Foam Systems: Guidelines for Safe Handling and Disposal (1993)
- An occupational hygiene assessment of the use and control of isocyanates in the UK by Hilary A Cowie et al. HSE Research Report RR311/2005. Prepared by the Institute of Occupational Medicine for the Health and Safety Executive
- Air Sampling Isocyanates