聚合物的晶区堆砌密度、无定形区自由体积的尺寸和数量、晶区-非晶区的界面等微观结构,对其宏观性能,如渗透性能、力学性能、松弛行为等有重要影响.正电子湮没寿命谱技术是一种强有力的微观结构探测与表征技术,能够灵敏有效地探测聚合物的晶区堆砌密度、无定形区自由体积以及两相界面等信息,从而提供了一种直接、简单的研究聚合物微观结构的途径.文中介绍了该技术的基本原理和应用理论,综述了该技术在聚合物研究领域的应用,如:聚合物本征特性与自由体积之间的关系,应力、辐照、外界压力、物理老化等外界因素对聚合物微观结构的影响,以及聚合物共混物、复合材料的相容性和界面特性等.最后总结了正电子湮没寿命谱技术在聚合物微观结构研究中存在的问题.
参考文献
| [1] | Hideyuki Itagaki;Jun Mochizuki .Size and Distribution of Free Volume in Thermoreversible Gels of Syndiotactic Polystyrene[J].Macromolecules,2005(23):9625-9630. |
| [2] | Dammert Ritva M.;Maurer Frans H.J.;Neelov Igor M.;Niemela Satu;Sundholm Franciska;Wastlund Camilla;Maunu Sirkka L. .Free volume and tacticity in polystyrenes[J].Macromolecules,1999(6):1930-1938. |
| [3] | Wei Gong;Yiyong Mai;Yongfeng Zhou;Ning Qi;Bo Wang;Deyue Yan .Effect of the Degree of Branching on Atomic-Scale Free Volume in Hyperbranched Poly[3-ethyl-3-(hydroxymethyl)oxetane].A Positron Study[J].Macromolecules,2005(23):9644-9649. |
| [4] | Dlubek G.;Stejny J.;Lupke T.;Bamford D.;Petters K.;Hubner C.;Alam MA.;Hill MJ. .Free-volume variation in polyethylenes of different crystallinities: Positron lifetime, density, and X-ray studies[J].Journal of Polymer Science, Part B. Polymer Physics,2002(1):65-81. |
| [5] | Ulrica Edlund;Yang Yu;Yingzhi Zhu Ryberg;Reinhard Krause-Rehberg;Ann-Christine Albertsson .Positron Lifetime Reveals the Nano Level Packing in Complex Polysaccharide-Rich Hydrolysate Matrixes[J].Analytical chemistry,2012(8):3676-3681. |
| [6] | Cerrada ML;Perez E;Perena JM;Benavente R;Misheva M;Grigorov T .Positron annihilation in metallocene ethylene/1-hexene copolymers related to their structure and mechanical properties[J].Macromolecules,2005(20):8430-8439. |
| [7] | Cheng, ML;Sun, YM;Chen, HM;Jean, YC .Change of structure and free volume properties of semi-crystalline poly(3-hydroxybutyrate-co-3-hydroxyvalerate) during thermal treatments by positron annihilation lifetime[J].Polymer: The International Journal for the Science and Technology of Polymers,2009(8):1957-1964. |
| [8] | M.A.Monge;J.A.Diaz;R.Pareja .Strain-Induced Changes of Free Volume Measured by Positron Lifetime Spectroscopy in Ultrahigh Molecular Weight Polyethylene[J].Macromolecules,2004(19):7223-7230. |
| [9] | K.Sudarshan;S.K.Rath;M.Patri .Positron annihilation spectroscopic studies of fluorinated ethylene propylene copolymer-g-polystyrene[J].Polymer: The International Journal for the Science and Technology of Polymers,2007(21):6434-6438. |
| [10] | A. Zaydouri;M. Grivet .The effect of electron irradiation on high-density polyethylene: Positron annihilation lifetime spectroscopy, differential scanning calorimetry and X-ray scattering studies[J].Radiation Physics and Chemistry,2009(9):770-775. |
| [11] | Han, Sang Hoon;Misdan, Nurasyikin;Kim, Seungju;Doherty, Cara M.;Hill, Anita J.;Lee, Young Moo .Thermally Rearranged (TR) Polybenzoxazole: Effects of Diverse Imidization Routes on Physical Properties and Gas Transport Behaviors[J].Macromolecules,2010(18):7657-7667. |
| [12] | Erichsen J;Nagel C;Gunther-Schade K;Renner M;Altstadt V;Faupel F .Positron annihilation lifetime measurements of mechanically fatigued polystyrene samples[J].Journal of Polymer Science, Part B. Polymer Physics,2008(18):1991-1995. |
| [13] | Consolati, G.;Lotti, N.;Mariani, M.;Munari, A.;Quasso, F. .Structural changes of poly(ethylene isophthalate) subjected to gamma irradiation[J].Polymer Degradation and Stability,2011(7):1297-1300. |
| [14] | Hong X.;Yang HJ.;Jordan SS.;Koros WJ.;Jean YC. .FREE-VOLUME HOLE PROPERTIES OF GAS-EXPOSED POLYCARBONATE STUDIED BY POSITRON ANNIHILATION LIFETIME SPECTROSCOPY[J].Macromolecules,1996(24):7859-7864. |
| [15] | Ma WM;Andersson A;He JS;Maurer FHJ .Free volume changes, crystallization, and crystal transition behavior of syndiotactic polystyrene in supercritical CO2 revealed by positron annihilation lifetime spectroscopy[J].Macromolecules,2008(14):5307-5312. |
| [16] | Rowe, BW;Pas, SJ;Hill, AJ;Suzuki, R;Freeman, BD;Paul, DR .A variable energy positron annihilation lifetime spectroscopy study of physical aging in thin glassy polymer films[J].Polymer: The International Journal for the Science and Technology of Polymers,2009(25):6149-6156. |
| [17] | Chen H;Cheng ML;Jean YC;Lee LJ;Yang J .Effect of CO2 exposure on free volumes in polystyrene studied by positron annihilation spectroscopy[J].Journal of Polymer Science, Part B. Polymer Physics,2008(4):388-405. |
| [18] | Raj, JM;Ranganathaiah, C .A free-volume study on the phase modifications brought out by e-beam and microwave irradiations in PP/NBR and PVC/SAN blends[J].Polymer Degradation and Stability,2009(3):397-403. |
| [19] | Hu YH.;Qi CZ.;Liu WM.;Wang BY.;Zheng HT.;Sun XD.;Zheng MM. .Characterization of the free volume in high-impact polystyrene/polypropylene and high-impact polystyrene/high-density polyethylene blends probed by positron annihilation spectroscopy[J].Journal of Applied Polymer Science,2003(6):1507-1514. |
| [20] | H. M. Chen;Y. C. Jean;L. James Lee;Jintao Yang;James Huang .Positron annihilation study in inorganic-polymer nano-composites[J].Physica status solidi, C. Current topics in solid state physics: PSS,2009(11):2397. |
| [21] | Z.F.Wang;B.Wang;N.Qi;H.F.Zhang;L.Q.Zhang .Influence of fillers on free volume and gas barrier properties in styrene-butadiene rubber studied by positrons[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(3):719-724. |
| [22] | QI CHENZE;WEI WANG .Effect of Polymer Polarity on the Positronium Formation[J].Journal of Polymer Science, Part B. Polymer Physics,2000(3):435-442. |
| [23] | Liao, K.-S.;Chen, H.;Awad, S.;Yuan, J.-P.;Hung, W.-S.;Lee, K.-R.;Lai, J.-Y.;Hu, C.-C.;Jean, Y.C. .Determination of free-volume properties in polymers without orthopositronium components in positron annihilation lifetime spectroscopy[J].Macromolecules,2011(17):6818-6826. |
| [24] | Gareth G. Hougham;Y. C. Jean .Relative Contributions of Polarizability and Free Volume in Reduction of Refractive Index and Dielectric Constant with Fluorine Substitution in Polyimides by Positron Annihilation Spectroscopy[J].Macromolecular chemistry and physics,2014(1):103-110. |
| [25] | Low, BT;Chung, TS;Chen, HM;Jean, YC;Pramoda, KP .Tuning the Free Volume Cavities of Polyimide Membranes via the Construction of Pseudo-Interpenetrating Networks for Enhanced Gas Separation Performance[J].Macromolecules,2009(18):7042-7054. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%