Conference paper Open Access
Chain extension of caprolactone and ethylene glycol macrodiols into hydroxyl-terminated polyurethanes
Asadauskas, Svajus Joseph;
Mačiulytė, Sandra;
Strakšys, Antanas;
Bėkiš, Julija
Polyurethane (PU) plastics are widespread in various areas such as adhesives, coatings, synthetic leather, etc. [1]. Frequently, PU plastics are synthesized from two components: 1) macrodiols and 2) isocyanates, whose reactions form urethane linkages [2]. The macrodiol must contain two OH groups with a polyether, polyester, hydrocarbon, polycarbonate or other type of spacer chain in between. Quite often, the macrodiol is pre-reacted with diisocyanates for chain extension and only then cross-linked into the final PU plastic. Resulting properties also depend on molecular weights, degree of crystallinity and morphology of PU polymers [3] in addition to the consequences of many side reactions, such as CO2 evolution.
Also available on pg 90 of http://www.journals.vu.lt/proceedings/article/view/12830/11636
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- Publication date:
- May 16, 2019
- DOI:
-
- Keyword(s):
- polyuethane
- Grants:
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European Commission:
- TERMINUS - in-built Triggered Enzymes to Recycle Multi-layers: an INnovation for USes in plastic-packaging (814400)
- Meeting:
- Chemistry and Chemical Technology 2019, International Conference of Lithuanian Society of Chemistry (CCT), Vilnius, Lithuania, 16 May 2019 (Session Poster)
- Communities:
- License (for files):
- Creative Commons Attribution 4.0 International