Synthesis of poly(D-lactide) with different molecular weight via melt-polymerization

Purba Purnama; Youngmee Jung; Chae Hwan Hong; Do Suck Han; Soo Hyun Kim

doi:10.1007/s13233-012-0072-8

Synthesis of poly(D-lactide) with different molecular weight via melt-polymerization

Purba Purnama, Youngmee Jung, Chae Hwan Hong, Do Suck Han, Soo Hyun Kim

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

11 Citations (Scopus)

Abstract

Polylactide is considered as "Green Polymer" due to its sustainability. Poly(D-lactide) is absolutely required in order to make stereocomplex polylactide. But, there is no report about D-lactide polymerization. Various molecular weight of poly(D-lactide) were successfully polymerized from D-lactide in the melt stage using various catalysts. Stannous octoate, aluminum isopropoxide and lanthanum isopropoxide has better solubility in the molten monomer compared to yttrium isopropoxide oxide. We obtained high conversion (99.17%) and high molecular weight (M _n=384,992) using stannous octoate. We also obtained high conversion (94.46%) and medium molecular weight (M _n=78,634) using aluminum isopropoxide. This data is suitable for industrial applications. In the kinetic study, stannous octoate has higher polymerization rate (k _p=10.8×10 ^-2 min ^-1) compared to the aluminum isopropoxide (k _p=7. 3×10 ^-2 min ^-1).

Original language	English
Pages (from-to)	515-519
Number of pages	5
Journal	Macromolecular Research
Volume	20
Issue number	5
DOIs	https://doi.org/10.1007/s13233-012-0072-8
Publication status	Published - 2012 May
Externally published	Yes

Keywords

D-lactide
Kinetic
Melt
Polymerization

ASJC Scopus subject areas

Chemical Engineering(all)
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1007/s13233-012-0072-8

Cite this

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title = "Synthesis of poly(D-lactide) with different molecular weight via melt-polymerization",

abstract = "Polylactide is considered as {"}Green Polymer{"} due to its sustainability. Poly(D-lactide) is absolutely required in order to make stereocomplex polylactide. But, there is no report about D-lactide polymerization. Various molecular weight of poly(D-lactide) were successfully polymerized from D-lactide in the melt stage using various catalysts. Stannous octoate, aluminum isopropoxide and lanthanum isopropoxide has better solubility in the molten monomer compared to yttrium isopropoxide oxide. We obtained high conversion (99.17%) and high molecular weight (M n=384,992) using stannous octoate. We also obtained high conversion (94.46%) and medium molecular weight (M n=78,634) using aluminum isopropoxide. This data is suitable for industrial applications. In the kinetic study, stannous octoate has higher polymerization rate (k p=10.8×10 -2 min -1) compared to the aluminum isopropoxide (k p=7. 3×10 -2 min -1).",

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author = "Purba Purnama and Youngmee Jung and Hong, {Chae Hwan} and Han, {Do Suck} and Kim, {Soo Hyun}",

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T1 - Synthesis of poly(D-lactide) with different molecular weight via melt-polymerization

AU - Purnama, Purba

AU - Jung, Youngmee

AU - Hong, Chae Hwan

AU - Han, Do Suck

AU - Kim, Soo Hyun

PY - 2012/5

Y1 - 2012/5

N2 - Polylactide is considered as "Green Polymer" due to its sustainability. Poly(D-lactide) is absolutely required in order to make stereocomplex polylactide. But, there is no report about D-lactide polymerization. Various molecular weight of poly(D-lactide) were successfully polymerized from D-lactide in the melt stage using various catalysts. Stannous octoate, aluminum isopropoxide and lanthanum isopropoxide has better solubility in the molten monomer compared to yttrium isopropoxide oxide. We obtained high conversion (99.17%) and high molecular weight (M n=384,992) using stannous octoate. We also obtained high conversion (94.46%) and medium molecular weight (M n=78,634) using aluminum isopropoxide. This data is suitable for industrial applications. In the kinetic study, stannous octoate has higher polymerization rate (k p=10.8×10 -2 min -1) compared to the aluminum isopropoxide (k p=7. 3×10 -2 min -1).

AB - Polylactide is considered as "Green Polymer" due to its sustainability. Poly(D-lactide) is absolutely required in order to make stereocomplex polylactide. But, there is no report about D-lactide polymerization. Various molecular weight of poly(D-lactide) were successfully polymerized from D-lactide in the melt stage using various catalysts. Stannous octoate, aluminum isopropoxide and lanthanum isopropoxide has better solubility in the molten monomer compared to yttrium isopropoxide oxide. We obtained high conversion (99.17%) and high molecular weight (M n=384,992) using stannous octoate. We also obtained high conversion (94.46%) and medium molecular weight (M n=78,634) using aluminum isopropoxide. This data is suitable for industrial applications. In the kinetic study, stannous octoate has higher polymerization rate (k p=10.8×10 -2 min -1) compared to the aluminum isopropoxide (k p=7. 3×10 -2 min -1).

KW - D-lactide

KW - Kinetic

KW - Melt

KW - Polymerization

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Synthesis of poly(D-lactide) with different molecular weight via melt-polymerization

Abstract

Keywords

ASJC Scopus subject areas

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