Abstract:
The present invention relates to functionalized polymers including a poly(phenylene) structure. The structure can include any useful modifications, such as the inclusion of one or more reactive handles having an aryl group. Methods and uses of such structures and polymers are also described herein.
Abstract:
A foam material having one glass transition temperature (Tg) and made from an immiscible composition having at least two glass transition temperatures (Tg) by an extrusion process wherein said composition (C) comprises at least one polyarylene (P1) polymer, wherein more than 50 % by moles (moles %) of the recurring units of said (P1) polymer are recurring units (R1) consisting of an arylene group, wherein said arylene group is a hydrocarbon divalent group consisting of one core composed of one benzene ring or of a plurality of benzene rings fused together by sharing two or more neighboring ring carbon atoms, said benzene ring being optionally substituted, wherein each of said arylene group is bound to two other arylene groups of neighboring recurring units (R1) through a first C-C bond (E1) and a second C-C bond (E2), wherein at least 20 moles % of recurring units (R1) are kink- forming arylene units (R1-b), the remainder being rigid rod- forming arylene units (R1-a) different from arylene R1_b units, wherein in said aryleneR 1_a units the bond (E1) and the bond (E2) are co-linear and anti- parallel towards each other, said (P1) polymer being present in composition (C) in an amount of below 75 % by weight (wt. %) and above 10 wt. % based on the total wt. % of (P1) polymer and (PPSU) polymer, and (ii) at least one polyphenylsulfone polymer, said (PPSU) polymer being present in composition (C) in an amount of below 90 wt. % and above 25 wt. % of based on the total wt. % of polyarylene (P4) polymer and (PPSU) polymer.
Abstract:
Blend (B) comprising: - at least one aromatic polyimide (P1), and - at least one polyarylene (P2), more than 50 wt. % of the recurring units thereof are optionally substituted arylene groups [recurring units (R2)], each of said recurring units (R2) being linked by each of its two ends to two other optionally substituted arylene groups via a direct C-C linkage, and said recurring units (R2) being a mix (M) consisting of : between 0 and 75 mole %, based on the total number of moles of recurring units (R2), of rigid rod-forming arylene units (R2a), optionally substituted by at least one monovalent substituting group, with between 25 and 100 mole %, based on the total number of moles of recurring units (R2), of kink-forming arylene units (R2b), optionally substituted by at least one monovalent substituting group. Article or part of an article comprising the blend (B).
Abstract:
Use of at least one kinked rigid-rod polyarylene of a specific type for its fire resistance properties. Films and coatings consisting of a material comprising the same kinked rigid-rod polyarylene.
Abstract:
The present invention relates to polymers comprising a conjugated backbone with repeating units represented by formula (I) wherein A represents a planar aromatic unit and X in each case independent from each other represents a divalent acetylene fragment or a thiophene unit and the use of theses polymers in photovoltaic devices.
Abstract:
Described herein are devices (1) for producing ophthalmic lenses including at least one mold half (2, 3) defining an optical surface where the mold half (2, 3) is made from a polymer that includes an aromatic polyimide, a polyphenylene, or a combination thereof. The devices (1) exhibit numerous advantages including, but not limited to, good chemical resistance, durability, machineability, and UV absorbing properties. Also described are methods for producing ophthalmic lenses using the devices described herein. The ophthalmic lenses produced with the devices (1) described herein exhibit excellent optical properties when compared to lenses produced from conventions molds.
Abstract:
Described herein are devices for producing ophthalmic lenses including at least one mold half defining an optical surface where the mold half is made from a polymer that includes an aromatic polyimide, a polyphenylene, or a combination thereof. The devices exhibit numerous advantages including, but not limited to, good chemical resistance, durability, machineability, and UV absorbing properties. Also described are methods for producing ophthalmic lenses using the devices described herein. The ophthalmic lenses produced with the devices described herein exhibit excellent optical properties when compared to lenses produced from conventions molds.
Abstract:
A prosthetic device made of a first specific type of polyarylene, taken alone or in combination with a second specific type of polyarylene, featuring some unexpected advantages such as a very high strength and stiffness, good elongation properties, high chemical resistance, good biocompatibility as well as an outstanding impact resistance.