Work

Property of polylactic acid synthesized from 85% lactic acid via direct condensation polymerization

Year: 2013

Type: article

Abstract: This research work is a study of the synthesis of polylactic acid (PLA) from 85% lactic acid via condensationpolymerization. Stannous chloride and stannous chloride mixed with p-toluene sulphonic acid were used ascatalyst for condensation polymerization reaction. The reaction was conducted at three different levels oftemperature namely 140, 150 and 160oC with reaction time of 24, 36 and 48 hr. The polymer obtained wascharacterized by FT-IR, 13C-NMR and 1H-NMR. Thermal property and weight average molecular weight of PLAwere determined by DSC and GPC, respectively. It was found that the optimal condition to synthesize PLA withthe highest weight average molecular weight (Mw=32,956) was occurred at temperature of 160oC, reaction timeof 36 hr and using stannous chloride as catalyst.

Source: Engineering and Applied Science Research

Authors: Panchanok Makchay, Somjai Kajorncheappunngam, Kanyarat Holasut

Institution: Khon Kaen University

Language: English

Topic: biodegradable polymer synthesis and properties

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W1609804502

FWCI:

Cites: 12

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Related to: 10