A unique “cage–cage” shaped hydrophobic fluoropolymer film derived from a novel double-decker structural POSS with a low dielectric constant

Jiang, Qiyang; Zhang, Weihai; Hao, Juanyuan; Wei, Yanfeng; Mu, Jianxin; Jiang, Zhenhua

doi:10.1039/c5tc02432c

Cited by 44 publications

(32 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, chemists are looking for synthetic routes exploiting among others hydrosilylation reaction to obtain novel, functionalized Si-based reagents with a specific structure such as silsesquioxanes. [17][18][19][20][21][22][23][24][25][26][27] While hydrosilylation of olefins with silanes has been widely studied, [3,28] the reports on T 8 silsesquioxanes are limited [5,6,[29][30][31][32][33][34] and for double-decker systems of both closed (D 2 T 8 [4,19,25,[35][36][37] ) and opened (M 4 T 8 [38][39][40][41][42][43] ) structure even more scant. [5] Cage-like derivatives have driven much attention due to specific physicochemical properties (governed by the nature of their silicate rigid core and by the number and type of functional groups attached to it) affecting directions of their broad applications from material chemistry to medicine.…”

Section: Introductionmentioning

confidence: 99%

“…[12,15,16] Taking research in the field of macromolecular DDSQ-based frameworks of hybrid nature into account, difunctionalized doubledecker silsesquioxanes are of greatest interest due to the possibility of their incorporation into the main chain of the polymer. [17][18][19][20][21][22][23][24][25][26][27] While hydrosilylation of olefins with silanes has been widely studied, [3,28] the reports on T 8 silsesquioxanes are limited [5,6,[29][30][31][32][33][34] and for double-decker systems of both closed (D 2 T 8 [4,19,25,[35][36][37] ) and opened (M 4 T 8 [38][39][40][41][42][43] ) structure even more scant. Miyashita and co-workers were the first to apply hydrosilylation as a method to modify tetrahydrosubstituted DDSQ (DDSQ-4OSiH) compound with N-vinylcarbazole performed in the presence of Karstedt's catalyst.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Highly Efficient Route for the Synthesis of a Novel Generation of Tetraorganofunctional Double‐decker Type of Silsesquioxanes

et al. 2019

View full text Add to dashboard Cite

We present an efficient methodology for the synthesis of tetrafunctionalized double-decker silsesquioxanes via hydrosilylation reaction. An investigation of the catalytic system, olefin structure, chemical and steric surrounding of SiÀ H moiety in the respective reagent was carried out on the progress, selectivity and rate of hydrosilylation process. Two alternative synthetic pathways for obtaining a variety of functionalized double-decker silsesquioxanes with high yields based on the Pt catalysts were developed. These parallel routes concern reverse SiÀ H and À CH=CH 2 reactive groups placement in the doubledecker silsesquioxane core. As a result, a series of new tetrasubstituted double-decker silsesquioxanes derivatives were obtained with high yield and selectivity and comprehensively characterized in detail by spectroscopic analyses.[a] J.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Highly Efficient Route for the Synthesis of a Novel Generation of Tetraorganofunctional Double‐decker Type of Silsesquioxanes

et al. 2019

View full text Add to dashboard Cite

show abstract

“…To prepare low surface energy materials, the least polarizable groups like the fluorinated groups are often used . A wide of fluorinated polymers have been used for hydrophobic materials due to the low surface energy and meantime, good thermal and chemical stability .…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic properties of poly(arylene ether)s derived from linear polydimethysiloxanes and decafluorobiphenyl

Lin

Hao

et al. 2017

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

A series of novel poly(arylene ether)s were synthesized with diphenol liner polydimethysiloxanes with different silicon numbers (2OH-PDMS-P; P 5 2, 6, 10, 12, 16) and decafluorobiphenyl via a two-step nucleophilic substitution polymerization. The chemical structures of the polymers were confirmed by Fourier transform infrared spectrometer, 19 F-NMR and 1 H-NMR spectra. All the polymers provided outstanding hydrophobic properties, high thermal stability and good solubility. The water contact angle (WCA) first increased and then suddenly decreased with the increasing of silicon numbers in PDMS. The highest WCA about 1128 was obtained when silicon numbers was ten.

show abstract

“…Notably, the introduction of POSS into the main chains influenced the dense pack of the polymer chains, resulting in the depression in glass transition temperatures ( T g s). In the past years, the studies on the difunctional POSS macromers of DDSQ have provoked considerable interest . In most of the previous reports, the difunctional POSS macromers were introduced into the main chains of polymers via various step‐growth polymerization approaches .…”

Section: Introductionmentioning

confidence: 99%

Organic–inorganic poly(N‐vinylpyrrolidone) copolymers with double‐decker silsesquioxane in the main chains: Synthesis, glass transition, and self‐assembly behavior

Liu

Zheng

2016

J. Polym. Sci. Part A: Polym. Chem.

View full text Add to dashboard Cite

An organic–inorganic copolymer with polyhedral oligomeric silsesquioxane (POSS) and xanthate moieties in the main chain was synthesized via the polycondensation between 3,13‐di(2‐bromopropionate)propyl double‐decker silsesquioxane (DDSQ) and 1,4‐di(xanthate potassium)butane. This hybrid copolymer was used as the macromolecular chain transfer agent to obtain the organic–inorganic poly(N‐vinylpyrrolidone) (PVPy) copolymers via a reversible addition fragmentation chain transfer/macromolecular design via the interchange of xanthates (RAFT/MADIX) polymerization approach; the polymerization behavior of N‐vinyl pyrrolidone was investigated by means of gel permeation chromatography. It was found that the polymerization was in a living and controlled manner. Transmission electron microscopy (TEM) showed that the organic–inorganic PVPy copolymers with DDSQ in the main chains were microphase‐separated in bulks. Compared to plain PVPy, the organic–inorganic PVPy copolymers displayed the decreased glass transition temperatures (Tgs); the decreased Tgs are attributable to the effect of the introduced DDSQ cages on the packing of PVPy chains as evidenced by means of Fourier transform infrared spectroscopy (FTIR). In water, the organic–inorganic PVPy copolymers can self‐assemble into the spherical nano‐objects with the size of 20–50 nm in diameter. In the self‐assembled nano‐objects, the aggregates of the hydrophobic DDSQ constituted the cores of the polymeric micelles whereas the PVPy chains between the DDSQ behaved as the coronas of the polymeric micelles. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 2949–2961

show abstract

A unique “cage–cage” shaped hydrophobic fluoropolymer film derived from a novel double-decker structural POSS with a low dielectric constant

Abstract: A novel double-decker structural fluorinated POSS and a diphenol POSS were first synthesized for preparing a unique “cage–cage”-shaped hydrophobic fluoropolymer film with a low dielectric constant.

Cited by 44 publications

References 21 publications

Highly Efficient Route for the Synthesis of a Novel Generation of Tetraorganofunctional Double‐decker Type of Silsesquioxanes

Highly Efficient Route for the Synthesis of a Novel Generation of Tetraorganofunctional Double‐decker Type of Silsesquioxanes

Hydrophobic properties of poly(arylene ether)s derived from linear polydimethysiloxanes and decafluorobiphenyl

Organic–inorganic poly(N‐vinylpyrrolidone) copolymers with double‐decker silsesquioxane in the main chains: Synthesis, glass transition, and self‐assembly behavior

Contact Info

Product

Resources

About