Well-Defined Polyolefin/Poly(epsilon-caprolactone) Diblock Copolymers: New Synthetic Strategy and Application

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	Well-Defined Polyolefin/Poly(epsilon-caprolactone) Diblock Copolymers: New Synthetic Strategy and Application
	Li QZ(李启蒸) ; Zhang GY(张国艺) ; Chen JZ(陈健壮) ; Zhao QL(赵巧玲) ; Lv HC(吕会朝) ; Huang J(黄晋) ; Wei LH(魏柳荷) ; D'AGOSTO Franck ; BOISSON Christophe ; Ma Z(马志)
刊名	J. Polym. Sci. Pol. Chem.
	2011
卷号	49 期号:2 页码:511-517
ISSN号	0887-624X
其他题名	结构可控的聚烯烃/聚己内酯两嵌段共聚物: 新合成策略及应用
通讯作者	马志
英文摘要	A new synthetic strategy, the combination of living polymerization of ylides and ring-opening polymerization (ROP), was successfully used to obtain well-defined polymethylene-b-poly(epsilon-caprolactone) (PM-b-PCL) diblock copolymers. Two hydroxyl-terminated polymethylenes (PM-OH, M-n = 1800 g mol(-1) (PDI = 1.18) and M-n = 6400 g mol(-1) (PDI = 1.14)) were prepared using living polymerization of dimethylsulfoxonium methylides. Then, such polymers were successfully transformed to PM-b-PCL diblock copolymers by using stannous octoate as a catalyst for ROP of c-caprolactone. The GPC traces and H-1 NMR of PM-b-PCL diblock copolymers indicated the successful extension of PCL segment (M-n of PM-b-PCL = 5200-10,300 g mol(-1); PDI = 1.06-1.13). The thermal properties of the double crystalline diblock copolymers were investigated by differential scanning calorimetry (DSC). The results indicated that the incorporation of crystalline segments of PCL chain effectively influence the crystalline process of PM segments. The low-density polyethylene (LDPE)/PCL and LDPE/polycarbonate (PC) blends were prepared using PM-b-PCL as compatibilizer, respectively. The scanning electron microscopy (SEM) observation on the cryofractured surface of such blend polymers indicates that the PM-b-PCL diblock copolymers are effective compatibilizers for LDPE/PCL and LDPE/PC blends. Porous films were fabricated via the breath-figure method using different concentration of PM-b-PCL diblock copolymers in CH2Cl2 under a static humid condition. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 511-517, 2011
学科主题	高分子化学
收录类别	SCI
原文出处	http://dx.doi.org/10.1002/pola.24464
语种	英语
WOS记录号	WOS:000286403100020
公开日期	2013-04-11
内容类型	期刊论文
源URL	[http://202.127.28.38/handle/331003/25401]
专题	上海有机化学研究所_分析化学研究室
推荐引用方式 GB/T 7714	Li QZ,Zhang GY,Chen JZ,et al. Well-Defined Polyolefin/Poly(epsilon-caprolactone) Diblock Copolymers: New Synthetic Strategy and Application[J]. J. Polym. Sci. Pol. Chem.,2011,49(2):511-517.
APA	李启蒸.,张国艺.,陈健壮.,赵巧玲.,吕会朝.,...&马志.(2011).Well-Defined Polyolefin/Poly(epsilon-caprolactone) Diblock Copolymers: New Synthetic Strategy and Application.J. Polym. Sci. Pol. Chem.,49(2),511-517.
MLA	李启蒸,et al."Well-Defined Polyolefin/Poly(epsilon-caprolactone) Diblock Copolymers: New Synthetic Strategy and Application".J. Polym. Sci. Pol. Chem. 49.2(2011):511-517.