Nanoclay reinforcement of poly(urethane-siloxane) copolymers
Апстракт
Series of poly(urethane-siloxane) nanocomposites (PUNC) was prepared with the in situ
polymerization, based on 4,4'-diphenylmethane diisocyanate and 1,4-butanediol as the
comonomers of the hard segments (HS) and α,ω–dihydroxy ethoxy
poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS). PUNC series
was composed of five samples of different HS contents (from 10 to 50 wt.%).
Organomodified montmorillonite clay (Cloisite 30B®) was used as nanofiller in the
amount of 1 wt.% (relative to the total weight of reactants), within prepared PUNCs. The
effect of the addition of nanoclay on structure, surface properties and morphology of
these PUNCs was investigated.
The obtained FTIR spectra confirm successful preparation and incorporation of nanoclay
particles inside of PUNC samples with different compositions i.e HS/SS ratio.
Incorporation of the EO-PDMS segments and nanoclay particles i.e. enrichment of the
surface of these PUNC films with Si and O atoms allows high...ly hydrophobic surface of
the PUNCs. Samples with the highest content of SS had the best hydrophobicity and the
highest contact angle values with water, formamide and diiodomethane. According to
the SEM images PUNCs exhibited two-phase morphology that was more pronounced in
samples with higher HS content due to the higher level of microphase separation.
Moreover, the addition of nanoclay particles has led to the appearance of more prominent
cross-sectional morphology [1,2].
Кључне речи:
poly(urethane-siloxane) nanocomposites / polymerizationИзвор:
Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd November 2019, Belgrade, 2019, 35-35Издавач:
- Belgrade : Serbian Chemical Society
- Belgrade : Serbian Young Chemists’ Club
Финансирање / пројекти:
- Синтеза и карактеризација нових функционалних полимера и полимерних нанокомпозита (RS-MESTD-Basic Research (BR or ON)-172062)
Институција/група
IHTMTY - CONF AU - Stefanović, Ivan PY - 2019 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6202 AB - Series of poly(urethane-siloxane) nanocomposites (PUNC) was prepared with the in situ polymerization, based on 4,4'-diphenylmethane diisocyanate and 1,4-butanediol as the comonomers of the hard segments (HS) and α,ω–dihydroxy ethoxy poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS). PUNC series was composed of five samples of different HS contents (from 10 to 50 wt.%). Organomodified montmorillonite clay (Cloisite 30B®) was used as nanofiller in the amount of 1 wt.% (relative to the total weight of reactants), within prepared PUNCs. The effect of the addition of nanoclay on structure, surface properties and morphology of these PUNCs was investigated. The obtained FTIR spectra confirm successful preparation and incorporation of nanoclay particles inside of PUNC samples with different compositions i.e HS/SS ratio. Incorporation of the EO-PDMS segments and nanoclay particles i.e. enrichment of the surface of these PUNC films with Si and O atoms allows highly hydrophobic surface of the PUNCs. Samples with the highest content of SS had the best hydrophobicity and the highest contact angle values with water, formamide and diiodomethane. According to the SEM images PUNCs exhibited two-phase morphology that was more pronounced in samples with higher HS content due to the higher level of microphase separation. Moreover, the addition of nanoclay particles has led to the appearance of more prominent cross-sectional morphology [1,2]. PB - Belgrade : Serbian Chemical Society PB - Belgrade : Serbian Young Chemists’ Club C3 - Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd November 2019, Belgrade T1 - Nanoclay reinforcement of poly(urethane-siloxane) copolymers SP - 35 EP - 35 UR - https://hdl.handle.net/21.15107/rcub_cer_6202 ER -
@conference{ author = "Stefanović, Ivan", year = "2019", abstract = "Series of poly(urethane-siloxane) nanocomposites (PUNC) was prepared with the in situ polymerization, based on 4,4'-diphenylmethane diisocyanate and 1,4-butanediol as the comonomers of the hard segments (HS) and α,ω–dihydroxy ethoxy poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS). PUNC series was composed of five samples of different HS contents (from 10 to 50 wt.%). Organomodified montmorillonite clay (Cloisite 30B®) was used as nanofiller in the amount of 1 wt.% (relative to the total weight of reactants), within prepared PUNCs. The effect of the addition of nanoclay on structure, surface properties and morphology of these PUNCs was investigated. The obtained FTIR spectra confirm successful preparation and incorporation of nanoclay particles inside of PUNC samples with different compositions i.e HS/SS ratio. Incorporation of the EO-PDMS segments and nanoclay particles i.e. enrichment of the surface of these PUNC films with Si and O atoms allows highly hydrophobic surface of the PUNCs. Samples with the highest content of SS had the best hydrophobicity and the highest contact angle values with water, formamide and diiodomethane. According to the SEM images PUNCs exhibited two-phase morphology that was more pronounced in samples with higher HS content due to the higher level of microphase separation. Moreover, the addition of nanoclay particles has led to the appearance of more prominent cross-sectional morphology [1,2].", publisher = "Belgrade : Serbian Chemical Society, Belgrade : Serbian Young Chemists’ Club", journal = "Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd November 2019, Belgrade", title = "Nanoclay reinforcement of poly(urethane-siloxane) copolymers", pages = "35-35", url = "https://hdl.handle.net/21.15107/rcub_cer_6202" }
Stefanović, I.. (2019). Nanoclay reinforcement of poly(urethane-siloxane) copolymers. in Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd November 2019, Belgrade Belgrade : Serbian Chemical Society., 35-35. https://hdl.handle.net/21.15107/rcub_cer_6202
Stefanović I. Nanoclay reinforcement of poly(urethane-siloxane) copolymers. in Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd November 2019, Belgrade. 2019;:35-35. https://hdl.handle.net/21.15107/rcub_cer_6202 .
Stefanović, Ivan, "Nanoclay reinforcement of poly(urethane-siloxane) copolymers" in Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd November 2019, Belgrade (2019):35-35, https://hdl.handle.net/21.15107/rcub_cer_6202 .