Abstract
The sol-gel polymerization of alkoxysilanes is a convenient and widely used method for the synthesis of silicon polymers and silicon-organic composites. The development of new sol-gel precursors is very important for obtaining new types of sol-gel products. New condensation polymer precursors containing consecutive silicon atoms-decaisopropoxycyclopentasilane (CPS) and dodecaethoxyneopentasilane (NPS)-were synthesized for the preparation of polysilane-polysiloxane material. The CPS and NPS xerogels were prepared by the sol-gel polymerization of CPS and NPS under three reaction conditions (acidic, basic and neutral). The CPS and NPS xerogels were characterized using N2 physisorption measurements (Brunauer-Emmett-Teller; BET and Brunauer-Joyner-Halenda; BJH), solid-state CP/MAS (cross-polarization/magic angle spinning) NMRs (nuclear magnetic resonances), TEM, and SEM. Their porosity and morphology were strongly affected by the structure of the precursors, and partial oxidative cleavage of Si-Si bonds occurred during the sol-gel process. The new condensation polymer precursors are expected to expand the choice of approaches for new polysilane-polysiloxane.
| Original language | English |
|---|---|
| Article number | 841 |
| Journal | Polymers |
| Volume | 11 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2019 May 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Polymers and Plastics
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New condensation polymer precursors containing consecutive silicon atoms- decaisopropoxycyclopentasilane and dodecaethoxyneopentasilane-and their sol-gel polymerization. / Park, Sung Jin; Lee, Myong Euy; Cho, Hyeon Mo; Shim, Sangdeok.
In: Polymers, Vol. 11, No. 5, 841, 01.05.2019.Research output: Contribution to journal › Article
TY - JOUR
T1 - New condensation polymer precursors containing consecutive silicon atoms- decaisopropoxycyclopentasilane and dodecaethoxyneopentasilane-and their sol-gel polymerization
AU - Park, Sung Jin
AU - Lee, Myong Euy
AU - Cho, Hyeon Mo
AU - Shim, Sangdeok
PY - 2019/5/1
Y1 - 2019/5/1
N2 - The sol-gel polymerization of alkoxysilanes is a convenient and widely used method for the synthesis of silicon polymers and silicon-organic composites. The development of new sol-gel precursors is very important for obtaining new types of sol-gel products. New condensation polymer precursors containing consecutive silicon atoms-decaisopropoxycyclopentasilane (CPS) and dodecaethoxyneopentasilane (NPS)-were synthesized for the preparation of polysilane-polysiloxane material. The CPS and NPS xerogels were prepared by the sol-gel polymerization of CPS and NPS under three reaction conditions (acidic, basic and neutral). The CPS and NPS xerogels were characterized using N2 physisorption measurements (Brunauer-Emmett-Teller; BET and Brunauer-Joyner-Halenda; BJH), solid-state CP/MAS (cross-polarization/magic angle spinning) NMRs (nuclear magnetic resonances), TEM, and SEM. Their porosity and morphology were strongly affected by the structure of the precursors, and partial oxidative cleavage of Si-Si bonds occurred during the sol-gel process. The new condensation polymer precursors are expected to expand the choice of approaches for new polysilane-polysiloxane.
AB - The sol-gel polymerization of alkoxysilanes is a convenient and widely used method for the synthesis of silicon polymers and silicon-organic composites. The development of new sol-gel precursors is very important for obtaining new types of sol-gel products. New condensation polymer precursors containing consecutive silicon atoms-decaisopropoxycyclopentasilane (CPS) and dodecaethoxyneopentasilane (NPS)-were synthesized for the preparation of polysilane-polysiloxane material. The CPS and NPS xerogels were prepared by the sol-gel polymerization of CPS and NPS under three reaction conditions (acidic, basic and neutral). The CPS and NPS xerogels were characterized using N2 physisorption measurements (Brunauer-Emmett-Teller; BET and Brunauer-Joyner-Halenda; BJH), solid-state CP/MAS (cross-polarization/magic angle spinning) NMRs (nuclear magnetic resonances), TEM, and SEM. Their porosity and morphology were strongly affected by the structure of the precursors, and partial oxidative cleavage of Si-Si bonds occurred during the sol-gel process. The new condensation polymer precursors are expected to expand the choice of approaches for new polysilane-polysiloxane.
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U2 - 10.3390/polym11050841
DO - 10.3390/polym11050841
M3 - Article
VL - 11
JO - Polymers
JF - Polymers
SN - 2073-4360
IS - 5
M1 - 841
ER -