Regulation of crystalline morphologies and mechanical properties of olefin multiblock copolymers by blending polymer with similar architecture of constituent blocks

ENGAGE compatibilized HDPE/EPDM blends: Modification of some industrially pertinent properties and morphology upon incorporation of Mg(OH)2 filler and electron beam crosslinked network

“…ENGAGE shows three melting peaks at 49, 86, and 128 °C, middle one being the major peak (highest amount of crystallinity). In the blend, HE 73 and HE 37 the T m of HDPE and EPDM are seen at 132, 52 and 131 and 53 °C respectively suggesting almost no considerable interaction between two phases . Interestingly, when 15 wt % ENGAGE is incorporated into the system, Tms with respect to HDPE and EPDM are reduced to 128 and 47 °C, and 127 and 46 °C in HE73EN and HE37 EN, respectively.…”

“…That means ENGAGE resides into the interface spreading chains across both the phases through tie molecule formation . When in a given system, components are interactive (compatible and/or miscible) the presence of one component affects the crystallization properties of the other polymer component significantly …”

“…In another work adhesion of various olefin copolymers to polypropylene and high‐density polyethylene and their effectiveness as compatibilizers in blends are studied . It is recently reported that olefin copolymer co‐crystallizes with polyolefin of similar chain architectures leading to compatibilize the system . Successful compatibilization of polypropylene/ethylene–propylene–diene terpolymer (PP/EPDM) blends by ethylene‐octene copolymer is also reported by Zhang .…”

“…However, nowadays there are many chemically or radiation modified polymeric compatibilizers and copolymers, which are used for the improvement of dispersion and stabilization of the morphology of immiscible polymers. Copolymers among the aforementioned compatibilizers are very attractive . It has been demonstrated experimentally and theoretically that the copolymer chains are located at the interface and act as compatibilizer reducing the interfacial tension …”

Morphology and mechanical properties of Acrylonitrile‐styrene‐acrylate toughened plastics with block copolymer chain structure

“…Block copolymers are promising to solve above problems because of a well‐defined molecular structure . Many studies have shown that the mechanical and rheological properties of various blends are remarkably improved by adopting block copolymers . Similar to anionic polymerization, controlled/living radical polymerization (CLRP) is a powerful tool to synthesize complex polymers like block copolymers and gradient copolymers, especially suitable for polar monomers .…”