Seo, Y Kim, B Kim, KU 2024-01-21T15:13:05Z 2024-01-21T15:13:05Z 2022-01-11 1999-07 0032-3861 https://pubs.kist.re.kr/handle/201004/142064 It is shown that a fibril structure of a thermotropic liquid crystalline polymer (TLCP)(poly(ester amide)) can be developed in the shear how field of a thermoplastic matrix (polyamide, nylon 66) when the viscosity of the latter is lower than that of the former. The addition of a third component, a functionalized polypropylene (maleic-anhydride-grafted polypropylene, MA-PP) that interacts with both the matrix polymer (nylon 66) and the thermotropic liquid crystalline polymer facilitates the structural development of the TLCP by acting as a compatibilizer at the interface. Morphological observations have demonstrated the significance of compatibilization in immiscible polymer blends. The compatibilizer brings about good adhesion at the interface, reduces the droplet size, and enables a finely dispersed liquid crystalline polymer to be deformed by shear flow without strong elongation, even when the viscosity of the matrix is much lower than that of the liquid crystalline polymer. The mechanical properties of the ternary blends are increased when a proper amount of MA-PP is added. This is attributed to fine strand generation induced by the addition of MA-PP. Enhanced adhesion at the interface invokes better elongation in the ternary blends. (C) 1999 Elsevier Science Ltd. All rights reserved. English ELSEVIER SCI LTD THERMOPLASTIC ELASTOMER Structure development during flow of ternary blends of a polyamide (nylon 66), a thermotropic liquid crystalline polymer (poly(ester amide)) and a functionalized polypropylene Article 10.1016/S0032-3861(98)00684-3 1 POLYMER, v.40, no.16, pp.4483 - 4492 POLYMER 40 16 4483 4492 scie scopus 000079905600006 2-s2.0-0032814090 Polymer Science Polymer Science Article THERMOPLASTIC ELASTOMER in situ formed compatibilizer shear induced deformation structure development