Towards high-performance poly(L-lactide)/elastomer blends with tunable interfacial adhesion and matrix crystallization via constructing stereocomplex crystallites at the interface

被引:60
作者
Bai, Hongwei [1 ,2 ]
Bai, Dongyu [1 ]
Xiu, Hao [1 ]
Liu, Huili [1 ]
Zhang, Qin [1 ]
Wang, Ke [1 ]
Deng, Hua [1 ]
Chen, Feng [1 ]
Fu, Qiang [1 ]
Chiu, Fang-Chyou [3 ]
机构
[1] Sichuan Univ, Coll Light Ind Text & Food Engn, State Key Lab Polymer Mat Engn, Coll Polymer Sci & Engn, Chengdu 610065, Peoples R China
[2] Sichuan Univ, Coll Light Ind Text & Food Engn, Chengdu 610065, Peoples R China
[3] Chang Gung Univ, Dept Chem & Mat Engn, Taoyuan 333, Taiwan
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
MICROMECHANICAL DEFORMATION PROCESSES; FILLED SEMICRYSTALLINE POLYMERS; POLY(LACTIC ACID); REACTIVE COMPATIBILIZATION; POLY(L-LACTIC ACID); IMPACT TOUGHNESS; POLY(D-LACTIC ACID); PHASE MORPHOLOGY; POLYLACTIDE; BEHAVIOR;
D O I
10.1039/c4ra08823a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this work, we report a facile strategy to prepare super-tough and heat-resistant poly(L-lactide) (PLLA) blends by constructing stereocomplex (sc) crystallites with dual interfacial adhesion enhancer/matrix crystallization accelerator functionality at the interface of the blends of PLLA/ethylene copolymer. To exploit the dual functionality, poly(D-lactide) grafted ethylene-acrylic ester copolymer (EMA-g-PDLA) capable of collaborating with the PLLA matrix to form the sc crystallites was first prepared via melt coupling reaction between end groups (carboxyl and hydroxyl) of PDLA and excess epoxy group of EMA-glycidyl methacrylate copolymer (EMA-GMA). During subsequent melt-blending of PLLA with the prepared EMA-g-PDLA, sc crystallites are formed at the interface. The results show that, compared with PLLA/EMA-GMA and PLLA/EMA-g-PLLA blends, injection molded PLLA/EMA-g-PDLA blends have much higher impact toughness and heat resistance because the interface-localized sc crystallites can induce substantial enhancement in both interfacial adhesion and matrix crystallinity. More interestingly, by modulating the amount of sc crystallites at the interface of the blends, optimum impact toughness can be achieved due to the optimization of interfacial strength and matrix crystallinity. This work provides a new concept for the fabrication of high-performance PLLA blends by tailoring matrix and interface properties with the aid of sc crystallites.
引用
收藏
页码:49374 / 49385
页数:12
相关论文
共 48 条
[1]   The influence of block copolymer microstructure on the toughness of compatibilized polylactide/polyethylene blends [J].
Anderson, KS ;
Hillmyer, MA .
POLYMER, 2004, 45 (26) :8809-8823
[2]   Enhancing the melt stability of polylactide stereocomplexes using a solid-state cross-linking strategy during a melt-blending process [J].
Bai, Hongwei ;
Liu, Huili ;
Bai, Dongyu ;
Zhang, Qin ;
Wang, Ke ;
Deng, Hua ;
Chen, Feng ;
Fu, Qiang .
POLYMER CHEMISTRY, 2014, 5 (20) :5985-5993
[3]   Toughening of poly(L-lactide) with poly(ε-caprolactone): Combined effects of matrix crystallization and impact modifier particle size [J].
Bai, Hongwei ;
Huang, Chunmei ;
Xiu, Hao ;
Gao, Yao ;
Zhang, Qin ;
Fu, Qiang .
POLYMER, 2013, 54 (19) :5257-5266
[4]   Tailoring Impact Toughness of Poly(L-lactide)/Poly(ε-caprolactone) (PLLA/PCL) Blends by Controlling Crystallizatior of PLLA Matrix [J].
Bai, Hongwei ;
Xiu, Hao ;
Gao, Jian ;
Deng, Hua ;
Zhang, Qin ;
Yang, Mingbo ;
Fu, Qiang .
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (02) :897-905
[5]   Control of Crystal Morphology in Poly(L-lactide) by Adding Nucleating Agent [J].
Bai, Hongwei ;
Zhang, Weiyi ;
Deng, Hua ;
Zhang, Qin ;
Fu, Qiang .
MACROMOLECULES, 2011, 44 (06) :1233-1237
[6]   Stereocomplex formation of high-molecular-weight polylactide: A low temperature approach [J].
Bao, Rui-Ying ;
Yang, Wei ;
Jiang, Wen-Rou ;
Liu, Zheng-Ying ;
Xie, Bang-Hu ;
Yang, Ming-Bo ;
Fu, Qiang .
POLYMER, 2012, 53 (24) :5449-5454
[7]   Phase Inversion in Polylactide/Soybean Oil Blends Compatibilized by Poly(isoprene-b-lactide) Block Copolymers [J].
Chang, Kwanho ;
Robertson, Megan L. ;
Hillmyer, Marc A. .
ACS APPLIED MATERIALS & INTERFACES, 2009, 1 (10) :2390-2399
[8]   Dynamically Vulcanized Biobased Polylactide/Natural Rubber Blend Material with Continuous Cross-Linked Rubber Phase [J].
Chen, Yukun ;
Yuan, Daosheng ;
Xu, Chuanhui .
ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (06) :3811-3816
[9]   CAVITATION VERSUS DEBONDING DURING DEFORMATION OF RUBBER-MODIFIED POLY(VINYL CHLORIDE) [J].
DOMPAS, D ;
GROENINCKX, G ;
ISOGAWA, M ;
HASEGAWA, T ;
KADOKURA, M .
POLYMER, 1995, 36 (02) :437-441
[10]   PLLA Microalloys Versus PLLA Nanoalloys: Preparation, Morphologies, and Properties [J].
Dong, Wenyong ;
Jiang, Fanhui ;
Zhao, Liping ;
You, Jichun ;
Cao, Xiaojun ;
Li, Yongjin .
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (07) :3667-3675