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1,028 Newest Publications about the topic gel permeation chromatography

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Molecules, Vol. 23, Pages 1427: A General Aqueous Silanization Protocol to Introduce Vinyl, Mercapto or Azido Functionalities onto Cellulose Fibers and Nanocelluloses

12-Jun-2018 | Beaumont, Marco ; Bacher, Markus ; Opietnik, Martina ; Gindl-Altmutter, Wolfgang ; Potthast, Antje ; Rosenau, Thomas, Molecules, 2018

Molecules, Vol. 23, Pages 1427: A General Aqueous Silanization Protocol to Introduce Vinyl, Mercapto or Azido Functionalities onto Cellulose Fibers and Nanocelluloses Molecules doi: 10.3390/molecules23061427 Authors: Marco Beaumont Markus Bacher Martina Opietnik Wolfgang ...

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Materials, Vol. 11, Pages 473: Temperature and Recognition Dual Responsive Poly(N-Isopropylacrylamide) and Poly(N,N-Dimethylacrylamide) with Adamantyl Side Group

22-Mar-2018 | Dong, Qiujing ; Luo, Chunhua ; Li, Na ; Chi, Jiaxiang ; Zhang, Qingqing, Materials, 2018

Materials, Vol. 11, Pages 473: Temperature and Recognition Dual Responsive Poly(N-Isopropylacrylamide) and Poly(N,N-Dimethylacrylamide) with Adamantyl Side Group Materials doi: 10.3390/ma11040473 Authors: Qiujing Dong Chunhua Luo Na Li Jiaxiang Chi Qingqing Zhang A series of ...

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One‐pot synthesis of block copolymers by ring‐opening polymerization and ultraviolet light‐induced ATRP at ambient temperature

19-Jan-2018 | Lin Lei, Feifei Li, Haixiu Zhao, Yuntao Wang, Journal of Polymer Science Part A: Polymer Chemistry, 2018

ABSTRACT We successfully synthesized poly(l‐lactide)‐b‐poly (methyl methacrylate) diblock copolymers at ambient temperature by combining ultraviolet light‐induced copper‐catalyzed ATRP and organo‐catalyzed ring‐opening polymerization (ROP) in one‐pot. The polymerization processes were carried ...

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Comparative Study of Distribution of Active Sites According to Their Stereospecificity in Propylene Polymerization over the Traditional TiCl3 and Supported Titanium–Magnesium Catalysts with Different Composition

15-Jan-2018 | Marina Nikolaeva, Mikhail Matsko, Vladimir Zakharov, Macromolecular Chemistry and Physics, 2018

Abstract The preparative‐temperature rising elution fractionation method is used to obtain comparative data on contents of fractions with different microtacticities for polypropylene (PP) samples prepared using three catalytic systems: the traditional Ziegler–Natta (Z–N) catalyst δ‐TiCl3 and ...

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Poly(citrate glyceride): A hyperbranched polyester for starch plasticization

21-Dec-2017 | Kang Zhang, XiaoPing Cheng, Fei Cheng, Yi Lin, Mi Zhou, PuXin Zhu, Polymer International, 2017

ABSTRACT Hyperbranched polyesters (HBPETs), terminated with either hydroxyl or carboxyl groups, were prepared from citric acid and glycerol in simple one‐step syntheses. The HBPETs structure and degree of branching were associated with Fourier transform infrared spectroscopy, gel permeation ...

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Novolac epoxy resin from 4,4′‐dihydroxybenzophenone: Thermal, thermomechanical, interfacial, and cure kinetics with DGEBA/DICY blend

21-Dec-2017 | Monisha Baby, Ranajit Pal, Nimmy Francis, Suraj Sudhi, Journal of Applied Polymer Science, 2017

ABSTRACT A novolac epoxy resin based on 4,4′‐dihydroxybenzophenone (BZPNE) was synthesized via epoxidation of 4,4′‐dihydroxybenzophenone novolac resin (BZPN). BZPN was obtained by strong mineral acid catalyzed reaction of 4,4′‐dihydroxybenzophenone (BZP) and paraformaldehyde. The formation of ...

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Effect of unmodified kraft lignin concentration on the emulsion and miniemulsion copolymerization of styrene with n‐butyl acrylate and methacrylic acid to produce polymer hybrid latex

19-Dec-2017 | Nigel Roderick Messmer, Lilia Müller Guerrini, Maurício Pinheiro Oliveira, Polymers for Advanced Technologies, 2017

The introduction of non‐modified kraft LignoBoost® lignin (KL) to produce polymer hybrid latex has received much attention in recent years because it is derived from renewable resources. The focus of this work is to develop a polymer hybrid latex by emulsion and miniemulsion copolymerization of ...

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Structural Characterization and Immunostimulatory Activity of Polysaccharides from Brassica rapa L. 

26-Oct-2017 | Zhuo-Er Chen; Reziyamu Wufuer; Jin-Hu Ji; Jin-Fang Li; Yu-Feng Cheng; Cai-Xia Dong; Hailiqian Taoerdahong, Journal of Agricultural and Food Chemistry, 2017

Two neutral polysaccharides (BRNP-1, 6.9 kDa; BRNP-2, 4.8 kDa) were purified from the common edible plant Brassica rapa L. via the combined techniques of ion-exchange chromatography and high-performance gel permeation chromatography. Monosaccharide composition analysis showed that BRNP-1 and ...

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Laccase‐catalyzed polymerization drying of Chinese lacquer sap with TiO2 nanoparticles

15-Oct-2017 | Jianhong Yang, Fengqin Shen, Jianping Deng, Jun Cai, Qiuhua Zhang, Wanghui Liu, Journal of Applied Polymer Science, 2017

ABSTRACT Nano‐TiO2/lacquer hybrid coatings are prepared by the blend of nano‐TiO2 and lacquer sap. Nano‐TiO2 particles are involved in the laccase‐catalyzed polymerization process of urushiol, which improves the properties of lacquer film. With increasing nano‐TiO2 from 0 to 5 wt %, the drying ...

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Synthesis and characterization of modified poly(aspartic acid) and its performance as a formaldehyde adsorbent

05-Oct-2017 | Ying Zhang, Qingshan Zhang, Yunzheng Li, Hongquan Yin, Baoping Lu, Huiping Shi, Journal of Applied Polymer Science, 2017

ABSTRACT A modified poly(aspartic acid) (PASPTU) as an efficient formaldehyde adsorbent is successfully prepared by grafting poly(aspartic acid) (PASP) with threonine and urea. The graft copolymer is characterized by means of nuclear magnetic resonance, Fourier transform infrared spectroscopy, ...

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