Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Terpenes as renewable monomers for biobased materials
KTH, Skolan för kemivetenskap (CHE). KTH, Skolan för teknikvetenskap (SCI), Centra, VinnExcellens Centrum BiMaC Innovation.
2011 (engelsk)Independent thesis Advanced level (degree of Master (Two Years)), 20 poäng / 30 hpOppgaveAlternativ tittel
Terpener som förnyelsebara monomerer för biobaserade material (svensk)
Abstract [en]

With the ambition to decrease the utilization of fossil fuels, a development of those raw materials that today only are seen as waste products is necessary. One of those waste products is turpentine. Turpentine is the largest natural source of terpenes in the world today. The main components are the terpenes α-pinene, β-pinene and 3-carene. 

In this project, different polymerisation techniques have been evaluated to polymerise limonene with the aim to make a material out of the green raw material, turpentine. Limonene is a terpene that can be found in turpentine. It has a planar structure and should work as a model for other terpenes.  

Previous work on polymerising terpenes has focused on succeeding with performing polymerisations of terpenes utilizing the techniques of cationic polymerisation and radical polymerisation. However, this has been done without the aim to make a material out of the polymers. In this project, on the other hand, the main focus has been to obtain a polymer that can be used as a basis for a material. Techniques that have been applied are: radical polymerisation, cationic polymerisation and thiol-ene polymerisation. 

In this study, attempts to homopolymerise limonene and also copolymerise it with other synthetic monomers, such as styrene, have been performed with both radical polymerisation and cationic polymerisation. The procedure for the radical polymerisation has been conducted following the work by Sharma and Srivastava. [1] Even though several articles have been published about radical copolymerisations of limonene with other synthetic monomers, the radical polymerisations have not succeeded in this project.

Further, the technique of thiol-ene chemistry has shown that limonene can be used in polymerisations; limonene reacts spontaneously with 2-mercaptoethyl ether forming a viscous polymer.

The obtained polymers have been characterized with proton nuclear magnetic resonance(1H-NMR), size exclusion chromatography (SEC), matrix-assisted laser desorption ionization-time of flight mass spectroscopy (MALDI-TOF MS), differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy.

sted, utgiver, år, opplag, sider
2011. , s. 53
Emneord [en]
Limonene, Terpenes, Radical polymerisation, Cationic polymerisation, Thiol-ene polymerisation
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-49875OAI: oai:DiVA.org:kth-49875DiVA, id: diva2:460536
Fag / kurs
Surface Coating Technology
Utdanningsprogram
Master of Science in Engineering - Chemical Science and Engineering
Uppsök
Physics, Chemistry, Mathematics
Veileder
Examiner
Tilgjengelig fra: 2011-12-01 Laget: 2011-11-30 Sist oppdatert: 2022-06-24bibliografisk kontrollert

Open Access i DiVA

fulltext(4148 kB)3612 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 4148 kBChecksum SHA-512
f4fb2b547e3f709784c9c59de596a131d08e19b962ce87011ca880fdb930227d26988c247d0eb6ec9b8fb502d38dcb950aed75cf3d2b251bf63b204f9d795d88
Type fulltextMimetype application/pdf

Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 3669 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 817 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf