Towards bio-based tapered block copolymers: the behaviour of myrcene in the statistical anionic copolymerisation

Abstract

The monoterpene myrcene is a bio-based diene monomer. The statistical, living anionic copolymerization with isoprene, styrene and 4-methylstyrene leads to gradient or tapered block copolymers, studied by in-situ NMR, SAXS and TEM.

Tailoring polymer dispersity and shape of molecular weight distributions: methods and applications

“…3). 53 Importantly due to the truly living nature of anionic polymerisation, 57,58 full monomer conversions were achieved and excellent end-group delity could be maintained, allowing access to diblock copolymers in one pot. 59 In 2019, the same group also presented a theoretical model that enables the accurate prediction of MWD composition for a range of initiator addition proles when polystyrene was synthesised by anionic polymerisation.…”

Kinetics of the anionic homopolymerizations of ß–myrcene and 4–methylstyrene in cyclohexane initiated by n–butyllithium

“…MYR has raised interest because it can be obtained from renewable sources, specifically from essential oils of various plants (for example, parsley, hops, thyme, cannabis, and others) . However, on a large scale, MYR is obtained from the pyrolysis of ß ‐pinene and, recently, developments in metabolic engineering also allow the microbial synthesis of MYR …”

“…In general, the chemical kinetics of the homopolymerization of ß ‐myrcene has been little studied. There are some publications on the anionic homopolymerization and copolymerization of MYR, but, as far as we know, there are no reports on the determination of its kinetic coefficient of propagation ( k p ).…”

P (VDF‐co‐CTFE)‐g‐P2VP amphiphilic graft copolymers: Synthesis, structure, and permeation properties

“…Amphiphilic copolymers can be either block copolymers or graft copolymers. Although block copolymers have a well‐ordered microstructure and show good properties, their synthesis typically involves multi‐step process . It has been reported that a graft copolymer is more advantageous than a block copolymer as it is economical and has a simple synthetic method .…”

“…Although block copolymers have a well-ordered microstructure and show good properties, their synthesis typically involves multi-step process. 10,11 It has been reported that a graft copolymer is more advantageous than a block copolymer as it is economical and has a simple synthetic method. 12,13 The hydrophilicity, morphology, and stability of membranes can be controlled by using amphiphilic copolymers as an additives.…”