I-Line Sensitive Photoacid and Photobase Generators and Their Use for Photocrosslinking System Based on Poly(vinylphenol) and Diepoxy Fluorene Derivatives.

Abstract

I-Line sensitive photoacid and photobase generators were prepared.Their use for photocrosslinking of the blended system of poly(vinylphenol) (PVP) and diepoxy fluorene derivatives was studied. Photolysis properties of the photoacid and photobase generators were investigated and the effect of photo-sensitizer on photolysis of the photoacid or photobase generators was discussed. PVP films containing diepoxy fluorene derivatives, photoacid or photobase generators, and photo-sensitizers were photocrosslinkable on irradiation at 366 nm after the post-exposure-bake (PEB) treatment. Photocrosslinking properties were discussed in terms of the irradiation dose, PEB temperature, structure of diepoxides, photoacid or photobase generators and photo-sensitizers. Thermal properties of the photocrosslinked PVP/diepoxy fluorene blends were investigated.

Photocrosslinking of Blends of Multifunctional Diphenylfluorene Derivatives and Polysilanes Using Visible Light

“…Thus, we have developed the photo-induced acid-catalyzed crosslinking system of diepoxyfluorene/polysilane blends in the presence of PAGs on irradiation at 365 nm [4]. In the system, the photo-induced acid catalyzed the crosslinking of epoxides and the terminal groups of polysilanes.…”

“…Derivatives of N-hydroxynaphthalene imide [2] and iodonium salts of 9,10-dimethoxyanthracene-2-sulfonic acid [3] are used as i-line sensitive PAGs. We have developed a series of i-line sensitive PAGs [4][5][6][7][8].…”

9,9-Diarylfluorene-Based Poly(alkyl aryl ether)s: Synthesis and Property

“…Meanwhile, such polymers also display excellent filler-dispersing ability [10][11][12] in addition to their high thermal stability, [13][14][15][16] high solubility, [17][18][19] and so on. [20][21][22][23][24][25] We have recently reported the special -interaction of the 9,9-diarylfluorene moiety in the matrix polymers toward -face of the carbon fillers.26 Although many polymers possessing 9,9-diarylfluorene moieties in the main chain have been developed to date, there is no study on polyethers. Polyethers are an important class of high performance engineering thermoplastics with a favorable combination of physical, mechanical, and chemical properties, other than processability, [31][32][33][34][35][36][37][38][39][40][41] and are easily synthesized usually by the polycondensation of diols and ditopic electrophiles.…”

“…Meanwhile, such polymers also display excellent filler-dispersing ability [10][11][12] in addition to their high thermal stability, [13][14][15][16] high solubility, [17][18][19] and so on. [20][21][22][23][24][25] We have recently reported the special -interaction of the 9,9-diarylfluorene moiety in the matrix polymers toward -face of the carbon fillers. 26 Although many polymers possessing 9,9-diarylfluorene moieties in the main chain have been developed to date, there is no study on polyethers.…”

Synthesis and Properties of Polysiloxanes Possessing 9,9-Diarylfluorene Structure in the Main Chain

“…In addition, such polymers exhibit other characteristic properties including fine dispersing ability for inorganic fillers, 13,14 good solubility toward organic solvents, 15 high thermal stability, [16][17][18][19] and so on. [20][21][22][23][24] Although several studies directed toward optical use of 9,9-diarylfluorene-based high performance polymers have been reported, the polymers often suffer from low heat-processability due to the high glass transition temperature (T g ). [16][17][18][19] As a potential solution to this issue, we postulated that the siloxane linkage in the main chain would serve as an effective linker, because polysiloxanes generally exhibit low T g in addition to high thermal stability.…”