The Use of Multiarm Star-Like Polymers in the Preparation of Epoxy Thermosets by UV-Cationic Photopolymerization. Effect of the Arms of the Star in the Curing Process and in the Final Properties and Morphology

被引：5
作者：
Foix, D. [1 ,2 ]
Morell, M. [2 ]
Serra, A. [2 ]
Sangermano, M. [1 ]
机构：
[1] Politecn Torino, Dept Appl Sci & Technol, I-10129 Turin, Italy
[2] Univ Rovira & Virgili, Dept Analyt & Organ Chem, E-43007 Tarragona, Spain
来源：
POLYMER ENGINEERING AND SCIENCE | 2014年 / 54卷 / 01期
关键词：
HYPERBRANCHED POLYMER; EPOXY/ANHYDRIDE THERMOSETS; TRIBLOCK COPOLYMER; RESIN; BLENDS; CHAINS;
D O I：
10.1002/pen.23526
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
New epoxy thermosets have been prepared via cationic UV-photopolymerization introducing two different multiarm star-like polymers. Both stars have a poly(glycidol) core but one has poly(methylmetacrylate) arms and the other poly(epsilon-caprolactone) ones. The characterization of the curing process has been performed by Real-Time FTIR and photo-DSC, observing a slight reduction in the curing rate on increasing the proportion of star. The thermosets prepared were characterized by gel content determination, DMTA and TGA, and finally the morphology observed by FE-SEM, demonstrating the formation of nanophases in the case of the star with poly(epsilon-caprolactone) arms. POLYM. ENG. SCI., 54:17-23, 2014. (c) 2013 Society of Plastics Engineers
引用
收藏
页码：17 / 23
页数：7
相关论文
共 27 条
[1]   Nanostructures in Thermosetting Blends of Epoxy Resin with Polydimethylsiloxane-block-poly(ε-caprolactone)-block-polystyrene ABC Triblock Copolymer [J].
Fan, Wenchun ;
Wang, Lei ;
Zheng, Sixun .
MACROMOLECULES, 2009, 42 (01) :327-336
[2]   A New Strategy for Controlling Shrinkage of DGEBA Resins Cured by Cationic Copolymerization with Hydroxyl-Terminated Hyperbranched Polymers and Ytterbium Triflate as an Initiator [J].
Fernandez-Francos, Xavier ;
Maria Salla, Josep ;
Cadenato, Ana ;
Maria Morancho, Josep ;
Serra, Angels ;
Mantecon, Ana ;
Ramis, Xavier .
JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 111 (06) :2822-2829
[3]   Efficient impact resistance improvement of epoxy/anhydride thermosets by adding hyperbranched polyesters partially modified with undecenoyl chains [J].
Flores, Marjorie ;
Fernandez-Francos, Xavier ;
Ferrando, Francesc ;
Ramis, Xavier ;
Serra, Angels .
POLYMER, 2012, 53 (23) :5232-5241
[4]   Synthesis of a new hyperbranched-linear-hyperbranched triblock copolymer and its use as a chemical modifier for the cationic photo and thermal curing of epoxy resins [J].
Foix, D. ;
Ramis, X. ;
Sangermano, M. ;
Serra, A. .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2012, 50 (06) :1133-1142
[5]   New pegylated hyperbranched polyester as chemical modifier of epoxy resins in UV cationic photocuring [J].
Foix, D. ;
Fernandez-Francos, X. ;
Ramis, X. ;
Serra, A. ;
Sangermano, M. .
REACTIVE & FUNCTIONAL POLYMERS, 2011, 71 (04) :417-424
[6]   Study on the chemical modification of epoxy/anhydride thermosets using a hydroxyl terminated hyperbranched polymer [J].
Foix, David ;
Yu, Yingfeng ;
Serra, Angels ;
Ramis, Xavier ;
Salla, Josep Maria .
EUROPEAN POLYMER JOURNAL, 2009, 45 (05) :1454-1466
[7]   2ND-ORDER TRANSITION TEMPERATURES AND RELATED PROPERTIES OF POLYSTYRENE .1. INFLUENCE OF MOLECULAR WEIGHT [J].
FOX, TG ;
FLORY, PJ .
JOURNAL OF APPLIED PHYSICS, 1950, 21 (06) :581-591
[8]   EPOXY-RESIN TOUGHENED WITH THERMOPLASTIC [J].
GILBERT, AH ;
BUCKNALL, CB .
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, 1991, 45 :289-298
[9]  
Hong XY, 2000, J APPL POLYM SCI, V77, P1353, DOI 10.1002/1097-4628(20000808)77:6<1353::AID-APP21>3.0.CO
[10]  
2-Y
123