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Pregled bibliografske jedinice broj: 622834

Thermal properties and side chain crystallinity of styrene and n-alkyl methacrylate terpolymers


Karažija, Tomislav; Vidović, Elvira; Jukić, Ante
Thermal properties and side chain crystallinity of styrene and n-alkyl methacrylate terpolymers // Polymer engineering and science, 53 (2013), 11; 2299-2307 doi:10.1002/pen.23599 (međunarodna recenzija, članak, znanstveni)


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Naslov
Thermal properties and side chain crystallinity of styrene and n-alkyl methacrylate terpolymers

Autori
Karažija, Tomislav ; Vidović, Elvira ; Jukić, Ante

Izvornik
Polymer engineering and science (0032-3888) 53 (2013), 11; 2299-2307

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
thermal properties; side chain crystallinity; calorimetry

Sažetak
Differential scanning calorimetry method was used for the study of thermal properties of terpolymers of styrene (ST) or methyl methacrylate (MMA) with dodecyl methacrylate and octadecyl methacrylate. Particularly, the interdependencies of the crystallinity content and composition of terpolymers were examined. The increase of the MMA or ST content in terpolymers resulted in the increased glass transition temperatures and decrease of the ratio of crystalline relative to amorphous phase (from 10 % for xMMA = 10 mol. % to 5.7 % for xMMA = 30 mol. %, and from 8.5 % for xST = 16 mol. % to 4 % for xST = 40 mol. %). These kind of copolymers are commonly used as flow improvers at low temperatures for lubricating mineral oils, therefore a direct correlation between flow behavior of polymer solutions in mineral oil (pour point) and side-chain crystallinity of copolymers was examined. Thus, by increasing the proportion of crystalline phases, i.e. the long-chain alkyl methacrylates in copolymer, the pour point of oil solutions lowers. Thus, solution of terpolymer with crystalline phase content of 4 mol.% displays the pour point of -9 oC while in those with crystalline phase content higher than 7 mol. % pour point lowers below -30 oC.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo



POVEZANOST RADA


Projekti:
125-1251963-1980 - Optimiranje svojstava kopolimera procesima usmjerenih radikalskih polimerizacija (Jukić, Ante, MZOS ) ( POIROT)

Ustanove:
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Profili:

Avatar Url Elvira Vidović (autor)

Avatar Url Tomislav Karažija (autor)

Poveznice na cjeloviti tekst rada:

doi onlinelibrary.wiley.com onlinelibrary.wiley.com

Citiraj ovu publikaciju:

Karažija, Tomislav; Vidović, Elvira; Jukić, Ante
Thermal properties and side chain crystallinity of styrene and n-alkyl methacrylate terpolymers // Polymer engineering and science, 53 (2013), 11; 2299-2307 doi:10.1002/pen.23599 (međunarodna recenzija, članak, znanstveni)
Karažija, T., Vidović, E. & Jukić, A. (2013) Thermal properties and side chain crystallinity of styrene and n-alkyl methacrylate terpolymers. Polymer engineering and science, 53 (11), 2299-2307 doi:10.1002/pen.23599.
@article{article, year = {2013}, pages = {2299-2307}, DOI = {10.1002/pen.23599}, keywords = {thermal properties, side chain crystallinity, calorimetry}, journal = {Polymer engineering and science}, doi = {10.1002/pen.23599}, volume = {53}, number = {11}, issn = {0032-3888}, title = {Thermal properties and side chain crystallinity of styrene and n-alkyl methacrylate terpolymers}, keyword = {thermal properties, side chain crystallinity, calorimetry} }
@article{article, year = {2013}, pages = {2299-2307}, DOI = {10.1002/pen.23599}, keywords = {thermal properties, side chain crystallinity, calorimetry}, journal = {Polymer engineering and science}, doi = {10.1002/pen.23599}, volume = {53}, number = {11}, issn = {0032-3888}, title = {Thermal properties and side chain crystallinity of styrene and n-alkyl methacrylate terpolymers}, keyword = {thermal properties, side chain crystallinity, calorimetry} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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