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有机催化剂催化合成侧链含有氨基的 P（LLA-co-TMAC）
关键字：：DBU， TBD， TMAC，L-LA，开环聚合
左旋聚乳酸（PLLA）是一种生物相容性良好、力学性能优良的可降解聚合物，利用有机小分子催化左旋丙交酯（L-LA）开环聚合制备 PLLA 具有反应条件温和、聚合程度可控及避免金属残余污染等优点。然而 PLLA 缺乏反应位点，难以进行生物活性分子修饰因而不利于细胞黏附。本文研究了使用有机催化剂 1,8-二氮杂二环[5.4.0]十一碳-7-烯（DBU），1,8-二氮杂二环[5.4.0]十一碳-7-烯（TBD）催化含...
http://www.polymer.cn/research/sy_info15918 |
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Synthesis, Characterization and Drug Delivery of AmphiphilicPoly{(lactic acid)-co-[(glycolic acid)-alt-(L-glutamic acid)]}-g-Poly(ethylene glycol)
关键字：PLGG-g-mPEG, micelles, drug delivery, doxorubicin (DOX)
This paper discusses the use of a novel amphiphilic graft polymer poly{(lactic acid)-co-[(glycolic acid)-alt-(Lglutamic acid)]}-g-monomethyl poly(ethylene glycol) (PLGG-g-mPEG) as a drug carrier. PLGG was synthesized through the ring-opening polymerization of L-lactide (LLA) and (3s)-benzoxylcarbonylethyl-morpholine-2,5-dione
(BEMD) using Sn(Oct)2 as a catalyst and it was subsequently deprotected...
http://www.polymer.cn/research/sy_info14957 |
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TEMPO 引发热自交联氟聚合物的合成与性能研究
关键字：：TEMPO P(VDF-co-CTFE) 热自交联
通过对传统的氟聚合物进行化学改性来制备功能氟材料已经成为一种经济、简便的可以用来拓展氟聚合物应用的方法。交联作为一种有效的提高聚合物性能的方法于 1840 年被首次应用。交联 PVDF 基聚合物性能有较为显著的提高，尤其是耐溶剂性能和力学拉伸性能。在本文中，通过电子转移再生活化-原子转移自由基聚合(ARGET-ATRP)一步合成了含（2,2,6,6-四甲基哌啶-氮-氧化物）TEMPO 可热引发自交联氟聚合物。体系...
http://www.polymer.cn/research/dis_info17892 |
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有机催化剂催化合成侧链含有氨基的 P（LLA-co-TMAC）
关键字：：DBU， TBD， TMAC，L-LA，开环聚合
左旋聚乳酸（PLLA）是一种生物相容性良好、力学性能优良的可降解聚合物，利用有机小分子催化左旋丙交酯（L-LA）开环聚合制备 PLLA 具有反应条件温和、聚合程度可控及避免金属残余污染等优点。然而 PLLA 缺乏反应位点，难以进行生物活性分子修饰因而不利于细胞黏附。本文研究了使用有机催化剂 1,8-二氮杂二环[5.4.0]十一碳-7-烯（DBU），1,8-二氮杂二环[5.4.0]十一碳-7-烯（TBD）催化含...
http://www.polymer.cn/research/dis_info17631 |
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纳米粒子在聚合物熔体中的凝聚特征与形态控制
关键字：Nanocomposites, Polymer blends, Nanoparticle aggregation, co-continuity
聚合物基纳米复合材料不仅能够体现纳米粒子的光、电、磁等特异功能，而且是唯一有可能集高强度、高韧性、高尺寸稳定性和光学透明性于一身的轻质高分子材料。
http://www.polymer.cn/research/dis_info13580 |
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Synthesis, Characteristics of a Novel Phosphorus-Silicon Containing Flame Retardant and its Application in Poly(ethylene-co-vinyl acetate)
关键字：flame retardant; synthesis; cone calorimeter; EVM rubber; composites
As the new regulations like the European Directives on WEEE (Waste of Electric and Electronic Equipment) and RoHS (Restrictions of Hazardous Substances) restrict the demand for some brominated flame retardants, there is a growing ...
http://www.polymer.cn/research/dis_info12432 |
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Nanofibers-based DDS electrospun from co-dissolving solutions of Eudragit L-100 and diclofenac sodium
关键字：Eudragit L100, Electrospinning, Drug-loaded nanofiber, Drug delivery systems, colon-targeted
The paper presents the preparation and characterization of nanofibers-based drug delivery systems (DDS) electrospun from co-dissolving solutions of Eudragit L100 and diclofenac sodium (DS). Eudragit L-100 and DS could well co-dissolve in a&...
http://www.polymer.cn/research/dis_info11748 |
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In-situ measurement of the formation process of poly(ethylene-co-vinyl alcohol) (EVAL) membran using an UTDR technique
关键字：ultrasonic time-domain reflectometry (UTDR),immersion precipitation,mass transfer,heat transfer
Ultrasonic time-domain reflectometry (UTDR) technique was employed to visualize the kinetic behavior of poly(ethylene-co-vinyl alcohol) (EVAL) membrane formation. EVAL membranes were prepared by immersionprecipitation method in water/dimethyl sulfoxide (DMSO)/...
http://www.polymer.cn/research/dis_info11639 |
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Structure changes and tensile properties of poly(4,4’-diphenylsulphone terephthalamide-co-3,3’-diphenyl-sulphone terephthalamide) fiber during drawing process
关键字：polyarylsulphonamide fiber,tensile property,crystal structure,drawing technology
The tensile properties of the high-temperature resistant Poly(4,4’-diphenylsulphone terephthalamide-co-3,3’-diphenylsulphone terephthalamide) (PSA) filaments were investigated by the temperature-controlled Stress-strain Tester. The effects of drawing rate, drawing ratio&nb...
http://www.polymer.cn/research/dis_info11568 |
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PS/PS-co-TMI/PA6 体系的反应相容*
关键字：反应相容 相容剂 相容效率 相容极限
本文以PS/PS-co-TMI/PA6 共混体系作为研究对象，着重研究了具有不同接枝量的反应相容剂PS-co-TMI 的反应相容效率，并通过SEM（扫描电镜）对共混形态进行了分析，并通过FTIR（红外分析）和DSC（差示扫描量热）的结果分析了最终共混体系的成分。
http://www.polymer.cn/research/dis_info10968 |
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