Synthesis and Properties of some ɛ-Caprolactone-Based Di- and Triblock Polymers by Anionic Polymerization

Buzdugan, Emil; Ghioca, Paul; Stribeck, Norbert; Beckman, Eric J.; Şerban, S.

doi:10.1002/1439-2054(200108)286:8<497::aid-mame497>3.0.co;2-f

Cited by 10 publications

(8 citation statements)

References 11 publications

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“…Stannous octoate (SO)‐initiated ROP of ɛ‐caprolactone (CL) and morpholine (Mor) derivative mixtures was reported in the literature . The PCL based di‐ and triblock copolymers were reported by Buzdugan et al . An amphiphilic copolymer consists of dextran‐ b ‐PCL in an aqueous medium was reported by Zhang et al .…”

Section: Introductionmentioning

confidence: 99%

“…Stannous octoate (SO)-initiated ROP of ɛ-caprolactone (CL) and morpholine (Mor) derivative mixtures was reported in the literature. 6 The PCL based di-and triblock copolymers were reported by Buzdugan et al 7 An amphiphilic copolymer consists of dextran-b-PCL in an aqueous medium was reported by Zhang et al 8 Core shell-type multiarm PCLb-polyethyleneimine was synthesized and characterized using the tools such as 1 H NMR spectroscopy and DSC. 9 Polyethylene glycol-PCL micelle for hydrophobic drug delivery was synthesized by Gong and research team.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

Meenarathi¹,

Siva²,

Jeyapriya³

et al. 2016

Adv Polym Technol

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ABSTRACT:The ring-opening polymerization of ɛ-caprolactone and morpholine mixture was carried out at 160°C for 24 h under nitrogen atmosphere at two different experimental conditions, mercaptoaceticacid (MAA) and Ag-MAA initiator variation. The resultants were characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, gel permeation chromatography, and high-resolution transmission electron microscopy techniques. The tensile strength of the copolymer nanocomposites was tested. The catalytic reduction behavior (reduction of nitrophenol into amino phenol), splinting activity, and drug delivery activity of the copolymer nanocomposite were tested. The obtained results were analyzed and critically compared. C

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

Meenarathi¹,

Siva²,

Jeyapriya³

et al. 2016

Adv Polym Technol

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“…Beyond this, such block copolymers, e.g. consisting of polybutadiene and poly(e-caprolactone) blocks, are nowadays of particular interest for morphological studies [4,5] and for investigations into their melting behavior. [6] For compatibilization of polybutadiene and poly(e-caprolactone) such a block copolymer polybutadiene-block-poly(ecaprolactone) would be suitable.…”

Section: Introductionmentioning

confidence: 99%

In Situ Preparation of a Compatibilized Poly(cis‐1,4‐butadiene)/Poly(ε‐caprolactone) Blend

Friebe

Nuyken

Windisch

et al. 2003

Macro Materials & Eng

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The ternary Ziegler‐Natta‐type catalyst system based on neodymium versatate (NdV), diisobutylaluminium hydride (DIBAH) and ethylaluminium sesquichloride (EASC) was used for the in situ preparation of a compatibilized blend consisting of poly(cis‐1,4‐butadiene) (BR = butadiene rubber) and poly(ε‐caprolactone) (PCL). Poly(cis‐1,4‐butadiene)‐block‐poly(ε‐caprolactone) which acts as compatibilizer for the two immiscible polymers BR and PCL was obtained by a two step sequential polymerization with the preparation of a living cis‐1,4‐BR building block in the first stage and the subsequent polymerization of CL during the second stage. This preparation method resulted in a polymer blend comprising the homopolymers BR and PCL as well as the block copolymer BR‐block‐PCL. For detailed characterization the block copolymer was separated from the respective homopolymers BR and PCL by means of fractionation with the binary solvent mixture dimethylformamide/methylcyclohexane (DMF/MCH) which mixes well at elevated temperature and exhibits phase separation at ambient temperature. 1H NMR, IR, SEC and TEM were used for characterization of the block copolymer.TEM of BR‐block‐PCL.magnified imageTEM of BR‐block‐PCL.

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“…In addition, an endothermic peak at 54°C for PSt‐ g ‐PCL and 47°C for PVC‐ g ‐PCL corresponding to the melting temperature (Tm) of PCL segment. Because the PSt‐ g ‐PCL exhibit a single glass transition (Tg = 71°C), which is considerably lower than Tg of PSt‐N3, it could assume some miscibility between the PSt and PCL blocks . On the other hand, the presence of only one Tg of PVC‐ g ‐PCL lower than the Tg of PVC‐N 3 clearly indicates that PCL acts as a macromolecular plasticizer for the PVC …”

Section: Reactive Plasticizermentioning

confidence: 98%

An overview on the recent developments in reactive plasticizers in polymers

Bodaghi

2019

Polymers for Advanced Techs

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This review is about the reactive plasticizer. Plasticizers are small molecules with low molecular weight. These compounds typically have an esteric structure. The plasticizers reduce the glass transition temperature, and the viscosity of the polymer also enhances the flexibility and processability of polymer materials. The main problem of these additives is that, over time, they migrate from the polymeric matrix and exude to the surface of polymeric matrix. As a result, the physical and mechanical properties of the polymer are affected. Various strategies, such as increasing molecular weight of plasticizer, selection of oligomeric structure for plasticizer, and adding nanoparticles of minerals, have been investigated to reduce and eliminate migration.An approach that has recently been of great interest to researchers is the use of reactive plasticizers. In this approach, plasticizers covalently bond to the polymeric chains and prevent migration.

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Synthesis and Properties of some ɛ-Caprolactone-Based Di- and Triblock Polymers by Anionic Polymerization

Cited by 10 publications

References 11 publications

Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

In Situ Preparation of a Compatibilized Poly(cis‐1,4‐butadiene)/Poly(ε‐caprolactone) Blend

An overview on the recent developments in reactive plasticizers in polymers

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