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Crystallization of Poly (ethylene glycol) in Poly (methyl methacrylate) Networks

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TLDR
In this paper, the crystallization of poly(ethylene glycol) (PEG) in poly(methyl methacrylate) (PMMA) networks was studied, which was compared with that of PEG homopolymer.
Abstract
The crystallization of poly(ethylene glycol) (PEG) in poly(methyl methacrylate) (PMMA) networks were studied, which was compared with that of PEG homopolymer. Melting point ( T m ) of PEG in PMMA networks is lower than that of pure PEG; the crystallinity and T m s of PEG in PMMA networks somewhat increase with increasing of PEG content; the cross-linker content of PMMA networks plays an important role for the crystallization of PEG. When the cross-linker content is between 3.5 wt% and 5.8 wt%, the distinct endothermic peak of PEG crystal fusion can be observed. Optical microscopic observation of the crystallized PEG in PMMA networks showed spherulite formation, indicating there was the co-continuous crystalline PEG in PMMA networks. DOI: http://dx.doi.org/10.5755/j01.ms.19.2.4430

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Membranes of Polymers of Intrinsic Microporosity (PIM-1) Modified by Poly(ethylene glycol)

TL;DR: In this article, four different paths to combine PIM-1 with PEG or poly(ethylene oxide) and poly(propylene oxide) (PPO) were studied: physically blending, quenching of polycondensation, synthesis of multiblock copolymers and synthesis of copolymer with PEO/PPO side chain.
Journal ArticleDOI

Ion Etching Induced Surface Patterns of Blend Polymer (Poly Ethylene Glycol – Poly Methyl Methacrylate) Irradiated with Gamma Rays

TL;DR: In this article, the pattern surface structure of a thin blend polymer film of poly methyl methacrylate (PMMA) induced by Ar+ ion etching (5 keV) has been investigated by scanning electron microscopy.
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Suitability of PEG/PMMA-based metal injection moulding feedstock: an experimental study

TL;DR: In this article, a comprehensive investigation of polyethylene glycol (PEG) and polymethyl methacrylate (PMMA) binder system has been carried out, where feedstocks were made using stainless steel 17-4PH powder, and subsequently, conventional and micrometal injection molding (μMIM) processes were carried out.
Journal ArticleDOI

Cross-linking of poly (ether-block-amide) by poly (ethylene glycol) diacrylate to prepare plasticizing-resistant CO2-selective membranes

TL;DR: In this paper, the effect of poly (ethylene glycol) diacrylate (PEGDA) concentration on the structure and properties of the poly(ether-block-amide) (Pebax-1657) composite membranes with high performance for CO2 separation was investigated.
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A simple straightforward thermal decomposition synthesis of PEG-covered Gd2O3 (Gd2O3@PEG) nanoparticles

TL;DR: In this paper, a facile thermal decomposition of gadolinium acetate hydrate (Gd(CH 3 CO 2 ) 3 ·XH 2 O) precursors in PEG-1000 was used as a solvent, and as a size reducing and functionalizing agent.
References
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Journal ArticleDOI

Banding in Polyethylene and Other Spherulites

TL;DR: In this paper, the authors analyzed the factors leading to twisting crystallographic orientation in banded polymer spherulites, both from the standpoint of qualitative morphology and of more quantitative measurement and calculation.
Journal ArticleDOI

The spherulitic structure of crystalline polymers. Part I. Investigations with the polarizing microscope

TL;DR: In this paper, an investigation on polymer spherulites is described in three parts: Part I (the present paper) describes the various effects observed under the polarizing microscope, part II (the problem of the position of the molecules and that of the microscopic fine structures will form Parts II and III.
Journal ArticleDOI

Investigations on banded spherulites

TL;DR: The nature of banded spherulites was further investigated in this paper, where the principal material used was a polyester, namely, polytrimethylene glutarate, but use was made also of nonpolymeric materials.
Journal ArticleDOI

Kinetics of crystallization in semicrystalline/amorphous polymer mixtures

TL;DR: Melange polyoxyde d'ethylene-polymethacrylate de methyle, etudie en fonction de la composition, de la masse moleculaire de chaque composant et de la temperature de cristallisation.
Journal ArticleDOI

Relationship between the glass transition temperature and the interaction parameter of miscible binary polymer blends

Xinya Lu, +1 more
- 01 Jun 1992 - 
TL;DR: In this paper, an equation that relates the transition temperature, TE, and a binary interaction parameter, x, for miscible binary polymer blends was derived, including no adjustable parameters, based on a thermodynamic mixing formalism using enthalpy as the thermodynamic parameter.
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