Industrial Technology Research Institute

Cheng-Hsing Fan

Chih-Hsiang Lin

Yih-Her Chang

Hsin-Ching Kao

Po-Hsien Ho

Meng-Hsin Chen

Ming-Tsong Leu

Kuo-Chen Shih

Jyh-Horng Wu

Li-Cheng Jheng

Chien-Pang Wu

Chien-Ming Chen

Chun-Yen Chen

Chia-Hao Li

Chi-Yuan Hung

Yuhsin Tsai

Feng-Jen Tsai

Jrjeng Ruan

Yao-Tsu Wu

Fu-Yu Tsai

A method for preparing a compound and a method for preparing a polymer employing the same are provided. The method for preparing a compound includes reacting a compound having a structure represented by Formula (I) with a compound having a structure represented by Formula (III) in the presence of a compound having a structure represented by Formula (II) to obtain a compound having a structure represented by Formula (IV) wherein Aris substituted or unsubstituted aryl group; X is &#x2014;O&#x2014;, &#x2014;S&#x2014;, or &#x2014;NH&#x2014;; Ris independently hydrogen or Calkyl group; Ris hydroxyl group, Calkyl group, phenyl group, or tolyl group; and Ris independently Calkyl group, Ccycloalkyl group, or Calkoxyalkyl group.

Method for preparing compound and method for preparing polymer employing the same

A method for preparing a cationic sulfoxide intermediate having the following formula wherein Arand Arare substituted or unsubstituted aryl groups that are the same or different, includes reacting hydrogen peroxide with (i) a compound having the following formula (2) or sulfonic acid R'SOH, wherein R&#x2032; is CH, CF, phenyl, toluene, or OH, and (ii) a cationic thioether intermediate having the following formula (4) to obtain the cationic sulfoxide intermediate: wherein R is a substituted or unsubstituted C-Calkyl group; and wherein Arand Arare as defined above and Y is an anion.

Method for preparing polyarylene sulfide (PAS) monomer

A polymer is provided. The polymer has a repeating unit having a structure represented by Formula (I) or Formula (II) wherein Arand Arcan be substituted or unsubstituted aryl diradical; Ycan be RSOor ClO; Rcan be Calkyl; Arand Arare different; and, Rcan be Calkyl, substituted or unsubstituted aromatic ring, or Chaloalkyl.

Polymer

A method for preparing a polymer is provided. The method for preparing a polymer includes subjecting at least one monomer having a structure represented by Formula (I) to a reaction in the presence of sulfonic acid, diphenyl amine, and oxygen-containing phosphide, obtaining a sulfonium salt polymer wherein x is 0, 1, or 2; Ris Calkyl group; and Ris independently hydrogen, or Calkyl group. In particular, the molar ratio of the diphenyl amine to the oxygen-containing phosphide is from 4:1 to 1:1.

Method for preparing a polymer

Disclosed is a method for manufacturing a film. 50 wt % to 85 wt % of a first polyester and 50 wt % to 15 wt % of a second polyester are dried and mixed to form a mixture. The first polyester is polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or combinations thereof. The second polyester is copolymerized of 1 part by mole of terephthalic acid, m parts by mole of 1,4-cyclohexanedimethanol (1,4-CHDM), n parts by mole of 1,3-cyclohexanedimethanol (1,3-CHDM), and o parts by mole of ethylene glycol (EG). m+n+o=1, 0&#x2264;o&#x2264;0.4, 0.6&#x2264;m+n&#x2264;1, and 0.06&#x2264;n/m&#x2264;1.31. The mixture is melted and blended to form a polyester composition, which is extruded to form a sheet. The sheet is then biaxially stretched to obtain a film. The biaxially stretched film is then treated with a thermal setting.

Polyester composition, electronic device, and method of forming film

A method for preparing a polyarylene sulfide includes reacting a methyl 4-(arylthio)aryl sulfoxide compound with sulfuric acid, methanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid or trifluoromethanesulfonic acid to obtain a polysulfonium intermediate; and demethylating the polysulfonium intermediate to obtain a polyarylene sulfide, wherein the polysulfonium intermediate is demethylated with aqueous HCl, HBr, or HI.

Polymerization process of polyarylene sulfide

Disclosed is a method for manufacturing a polyester film with low thermal expansion. 95 wt % to 55 wt % of crystalline polyester and 5 wt % to 45 wt % of amorphous polyester are mixed. The blend is then melt extruded to form a sheet. The sheet is then biaxially stretched to obtain a film. The biaxially stretched film is then treated with a heat-setting procedure.

Polyester films with low thermal expansion and methods for manufacturing the same

A polyester film is described, including a first polyester and a second polyester. The weight ratio of the first polyester to the second polyester ranges from 1:1 to 1:3. The glass transition temperature of the first polyester is higher than 140&#xb0; C. and that of the second polyester is lower than 140&#xb0; C.

Polyester film and method of fabricating the same

Disclosed is an amorphous copolyester polymerized of a diacid and diols. The diacid is selected from a group consisting of terephthalic acid, 5-tert-butylisophthalic acid, and dimethyl 2,6-naphthalenedicarboxylate. The diols are selected at least two from a group consisting of ethylene glycol, 2,2-dimethyl-1,3-propanediol, and tricyclodecanedimethanol. The molar ratio of the tricyclodecanedimethanol is 30% to 95% of the diols.

Amorphous copolyester, substrate, and optical film

A random amorphous copolyester is synthesized by using diacid monomers and diol monomers. The random amorphous copolyester has a structure of the formula (I): wherein R, Ris an aromatic or aliphatic monomer, A is 0-0.8, B is 0-0.8, C is 0-1, D is 0-1, E is 0-0.8, F is 0-0.8, C+D&#x3c;0.2 and A+B+E+F&#x3c;0.8. The diacid monomer comprises TPA and an aromatic or aliphatic diacid monomer, the diol monomer comprises EG, 1,3 and 1,4-CHDM, and an aromatic or aliphatic diol monomer.

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Tainan, Taiwan

Cheng-Hsing Fan