Enhanced impact properties of polylactide by poly(lactide-b-butadiene-b- lactide) triblock copolymer

Na Youn Kim; Young Soo Yun; Jae Yun Lee; Chantiga Choochottiros; Hye Ri Pyo; In Joo Chin; Hyoung Joon Jin

doi:10.1007/s13233-011-0906-9

Enhanced impact properties of polylactide by poly(lactide-b-butadiene-b- lactide) triblock copolymer

Na Youn Kim
, Young Soo Yun
, Jae Yun Lee
, Chantiga Choochottiros
, Hye Ri Pyo
, In Joo Chin
, Hyoung Joon Jin^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Polylactide (PLA) was copolymerized with polybutadiene (PBD) to improve its impact properties. Triblock copolymers of poly(lactide-b-butadiene-b-lactide) (PLBDL) were obtained by the ring opening polymerization of lactide using tin 2-ethylhexanoate (Sn(Oct)₂) and hydroxyl terminated polybutadiene (HTPBD) as a catalyst and macroinitiator, respectively. PLA and PLBDL were blended at 5, 10, and 15 wt% PLBDL. After blending, the samples exhibited a shift in the T _g of PLA, which means that PLBDL and PLA are compatible. The tensile strength and Young's modulus decreased with increasing PLBDL. On the other hand, the PLA/PLBDL blend containing 10 wt% PLBDL showed a 4 fold increase in impact strength. In addition, the elongation at break of the blend containing 10 wt% PLBDL was 467%, showing a 27 fold increase compared to neat PLA. This suggests that the PBD chains on the PLBDL backbone have a significant effect on the impact properties of PLA.

Original language	English
Pages (from-to)	943-947
Number of pages	5
Journal	Macromolecular Research
Volume	19
Issue number	9
DOIs	https://doi.org/10.1007/s13233-011-0906-9
Publication status	Published - 2011 Sept
Externally published	Yes

Keywords

impact strength
polybutadiene
polylactide
triblock copolymer

ASJC Scopus subject areas

General Chemical Engineering
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1007/s13233-011-0906-9

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@article{a5fb400aa8b84a4f82604e4c23455955,

title = "Enhanced impact properties of polylactide by poly(lactide-b-butadiene-b- lactide) triblock copolymer",

abstract = "Polylactide (PLA) was copolymerized with polybutadiene (PBD) to improve its impact properties. Triblock copolymers of poly(lactide-b-butadiene-b-lactide) (PLBDL) were obtained by the ring opening polymerization of lactide using tin 2-ethylhexanoate (Sn(Oct)2) and hydroxyl terminated polybutadiene (HTPBD) as a catalyst and macroinitiator, respectively. PLA and PLBDL were blended at 5, 10, and 15 wt\% PLBDL. After blending, the samples exhibited a shift in the T g of PLA, which means that PLBDL and PLA are compatible. The tensile strength and Young's modulus decreased with increasing PLBDL. On the other hand, the PLA/PLBDL blend containing 10 wt\% PLBDL showed a 4 fold increase in impact strength. In addition, the elongation at break of the blend containing 10 wt\% PLBDL was 467\%, showing a 27 fold increase compared to neat PLA. This suggests that the PBD chains on the PLBDL backbone have a significant effect on the impact properties of PLA.",

keywords = "impact strength, polybutadiene, polylactide, triblock copolymer",

author = "Kim, \{Na Youn\} and Yun, \{Young Soo\} and Lee, \{Jae Yun\} and Chantiga Choochottiros and Pyo, \{Hye Ri\} and Chin, \{In Joo\} and Jin, \{Hyoung Joon\}",

year = "2011",

month = sep,

doi = "10.1007/s13233-011-0906-9",

language = "English",

volume = "19",

pages = "943--947",

journal = "Macromolecular Research",

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TY - JOUR

T1 - Enhanced impact properties of polylactide by poly(lactide-b-butadiene-b- lactide) triblock copolymer

AU - Kim, Na Youn

AU - Yun, Young Soo

AU - Lee, Jae Yun

AU - Choochottiros, Chantiga

AU - Pyo, Hye Ri

AU - Chin, In Joo

AU - Jin, Hyoung Joon

PY - 2011/9

Y1 - 2011/9

N2 - Polylactide (PLA) was copolymerized with polybutadiene (PBD) to improve its impact properties. Triblock copolymers of poly(lactide-b-butadiene-b-lactide) (PLBDL) were obtained by the ring opening polymerization of lactide using tin 2-ethylhexanoate (Sn(Oct)2) and hydroxyl terminated polybutadiene (HTPBD) as a catalyst and macroinitiator, respectively. PLA and PLBDL were blended at 5, 10, and 15 wt% PLBDL. After blending, the samples exhibited a shift in the T g of PLA, which means that PLBDL and PLA are compatible. The tensile strength and Young's modulus decreased with increasing PLBDL. On the other hand, the PLA/PLBDL blend containing 10 wt% PLBDL showed a 4 fold increase in impact strength. In addition, the elongation at break of the blend containing 10 wt% PLBDL was 467%, showing a 27 fold increase compared to neat PLA. This suggests that the PBD chains on the PLBDL backbone have a significant effect on the impact properties of PLA.

AB - Polylactide (PLA) was copolymerized with polybutadiene (PBD) to improve its impact properties. Triblock copolymers of poly(lactide-b-butadiene-b-lactide) (PLBDL) were obtained by the ring opening polymerization of lactide using tin 2-ethylhexanoate (Sn(Oct)2) and hydroxyl terminated polybutadiene (HTPBD) as a catalyst and macroinitiator, respectively. PLA and PLBDL were blended at 5, 10, and 15 wt% PLBDL. After blending, the samples exhibited a shift in the T g of PLA, which means that PLBDL and PLA are compatible. The tensile strength and Young's modulus decreased with increasing PLBDL. On the other hand, the PLA/PLBDL blend containing 10 wt% PLBDL showed a 4 fold increase in impact strength. In addition, the elongation at break of the blend containing 10 wt% PLBDL was 467%, showing a 27 fold increase compared to neat PLA. This suggests that the PBD chains on the PLBDL backbone have a significant effect on the impact properties of PLA.

KW - impact strength

KW - polybutadiene

KW - polylactide

KW - triblock copolymer

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U2 - 10.1007/s13233-011-0906-9

DO - 10.1007/s13233-011-0906-9

M3 - Article

AN - SCOPUS:80052672684

SN - 1598-5032

VL - 19

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JO - Macromolecular Research

JF - Macromolecular Research

IS - 9

ER -

Enhanced impact properties of polylactide by poly(lactide-b-butadiene-b- lactide) triblock copolymer

Abstract

Keywords

ASJC Scopus subject areas

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