Abstract: Spun ABPBI fibers and a process for the preparing spun ABPBI fibers using a high molecular weight ABPBI dope solution suitable for spinning are provided. A process for preparing the high molecular weight ABPBI dope solution suitable for spinning is also provided. The spun ABPBI fibers can be used in the preparation of high temperature thermally resistant articles.

Abstract: The present disclosure relates to a polymeric blend composite comprising Poly Ether Ketone/Poly-(2,5-Benzimidazole) containing pre-treated multi walled carbon nanotubes (MWCNTs) between 0.5 to 5 wt % were melt processed on a twin-screw extruder and granules so obtained were injection molded to determine heat deflection temperature (HDT) of these composites and storage modulus using DMA. It was found that HDT and storage Modulus for so produced reinforced blends were unexpectedly extremely high as compared to PEK/ABPBI blends without MWCNTs.

Abstract: A polyether ketone ketone (PEKK) has a terephthaloyl:isophthaloyl (T:I) ratio of 100:0. A process for preparing the PEKK is also provided. The process includes polymerizing 1,4-bis (4-phenoxybenzoyl) benzene (EKKE) with terephthaloyl chloride (TPC), and an end capping agent in a fluid medium, to obtain a product mixture including the PEKK. The PEKK is thermally stable and is melt processable on compounding, for injection molding and extrusion.

Abstract: A polymeric blend composite is provided which includes 60 wt % to 99 wt % Poly Ether Ketone Ketone (PEKK), 1 wt % to 6 wt % Multi walled carbon nanotubes (MWCNTs), and 0 wt % to 40 wt % Poly-(2,5-Benzimidazole) (ABPBI). A process for preparing the polymeric blend composite is also provided according to which 60 wt % to 99 wt % PEKK, 1 wt % to 6 wt % MWCNT and 0 wt % to 40 wt % ABPBI are mixed, followed by melt processing on a twin-screw extruder. The extrudates of the polymeric blend composite possess higher electrical conductivity and storage Modulus as compared to PEKK without MWCNTs and PEKK+ABPBI blends without MWCNTs.

Abstract: Spun ABPBI fibers and a process for the preparing spun ABPBI fibers using a high molecular weight ABPBI dope solution suitable for spinning are provided. A process for preparing the high molecular weight ABPBI dope solution suitable for spinning is also provided. The spun ABPBI fibers can be used in the preparation of high temperature thermally resistant articles.

Abstract: The present disclosure relates to a polymeric blend composite comprising Poly Ether Ketone/Poly-(2,5-Benzimidazole) containing pre-treated multi walled carbon nanotubes (MWCNTs) between 0.5 to 5 wt % were melt processed on a twin-screw extruder and granules so obtained were injection molded to determine heat deflection temperature (HDT) of these composites and storage modulus using DMA. It was found that HDT and storage Modulus for so produced reinforced blends were unexpectedly extremely high as compared to PEK/ABPBI blends without MWCNTs.

Abstract: Copolymers of PEEK and PEEK/PEK and methods of preparation thereof are provided. The melt temperatures of the PEEK copolymer and PEEK/PEK copolymer compositions are in the range of 350° C. to 420° C. The compositions are based on PEEK monomers biphenol and 4,4?-difluorobenzophenone with other PEEK co-monomers such as hydroquinone and PEK co-monomers such as 4-chloro-4?-hydroxybenzophenone, 4,4?-difluorobenzophenone and 4,4?-dihydroxybenzophenone.

Abstract: The present disclosure provides a polymeric composition resistant to temperatures comprising Poly 2,5rBenzimidazole having intrinsic viscosity (I. V.) between 1.0 and 2.5; and at least one binder having a glass transition temperature less than the glass transition temperature of Poly2,5-Benzimidazole and intrinsic viscosity ranging between 0.2 and 1.5. The present disclosure also provides a process for preparing the polymeric composition resistant to temperatures.

Abstract: The graft copolymer is the reaction of a backbone polymer having allylic chloride groups therein and monomers forming a pendant graft polymer in the presence of a coinitiator. The monomers have the formula ##STR1## wherein R is an alkyl group having from 1 to 15 carbon atoms, a cycloalkyl group having from 4 to 15 carbon atoms, an aryl group having from 6 to 15 carbon atoms, combinations thereof, or hydrogen. The amount of the pendant graft polymer portion by weight ranges from about 0.5 percent to about 90 percent based upon the total weight of the total graft copolymer with the pendant graft polymer being substituted on the polymer backbone in lieu of the chlorine atom of the allylic chloride group.

Abstract: The graft copolymer is the reaction of a backbone polymer having allylic chloride groups therein and monomers forming a pendant graft polymer in the presence of a coinitiator. The monomers have the formula ##STR1## wherein R is an alkyl group having from 1 to 15 carbon atoms, a cycloalkyl group having from 4 to 15 carbon atoms, an aryl group having from 6 to 15 carbon atoms, combinations thereof, or hydrogen. The amount of the pendant graft polymer portion by weight ranges from about 0.5 percent to about 90 percent based upon the total weight of the total graft copolymer with the pendant graft polymer being substituted on the polymer backbone in lieu of the chlorine atom of the allylic chloride group.

Abstract: The graft copolymer is the reaction of a backbone polymer having allylic chloride groups therein and monomers forming a pendant graft polymer in the presence of a coinitiator. The monomers have the formula ##STR1## wherein R is an alkyl group having from 1 to 15 carbon atoms, a cycloalkyl group having from 4 to 15 carbon atoms, an aryl group having from 6 to 15 carbon atoms, combinations thereof, or hydrogen. The amount of the pendant graft polymer portion by weight ranges from about 0.5 percent to about 90 percent based upon the total weight of the total graft copolymer with the pendant graft polymer being substituted on the polymer backbone in lieu of the chlorine atom of the allylic chloride group.