EMAIL: PASSWORD:
Front Office
UPT. PERPUSTAKAAN
Institut Teknologi Sepuluh Nopember Surabaya


Kampus ITS Sukolilo - Surabaya 60111

Phone : 031-5921733 , 5923623
Fax : 031-5937774
E-mail : libits@its.ac.id
Website : http://library.its.ac.id

Support (Customer Service) :
timit_perpus@its.ac.id




Welcome..guys!

Have a problem with your access?
Please, contact our technical support below:
LIVE SUPPORT


Moh. Fandika Aqsa


Davi Wahyuni


Tondo Indra Nyata


Anis Wulandari


Ansi Aflacha




ITS » Scientific Articles » Luar ITS
Posted by hikmatun_n@chem-eng.its.ac.id at 01/09/2016 14:04:01  •  609 Views


COMPOSITE BANDED CORE AND NON-BANDED SHELL TRANSITION PATTERNS IN STEREOCOMPLEXED POLYLACTIDE ACID INDUCED BY STRONGLY INTERACTING POLYP-VINYL PHENOL

Author :
HIKMATUN NIMAH ( 198410102009122006 )
EAMOR M.WOO   SHIH-MIN CHANG




ABSTRAK

Banded cores and non-banded shells with transitional patterns in stereocomplexed polylactic acid sc-PLA PLLA PDLA 1 1 interacting with amorphous polyp-vinyl phenol PVPh 2030 wt were investigated by using polarized optical POM atomic force AFM and scanning electron microscopy SEM. The central core of the spherulites is ring-banded which transitions into non-banded patterns on the outer peripheral in sc-PLAPVPh blends crystallized at Tc 160180 C. This composite crystal morphology is distinctly different from that of the neat sc-PLA which is a Maltese-cross without any ring patterns in spherulites. The bands in the core region are also dramatically different from those bands with birefringence contrasts observed in classical ring-bands. The bands in the core show only crystal topology and no birefringence difference. Both regions of ring-banded and non-banded crystals are composed of edge-on lamellae but the central-core lamellae undergo periodical waving up and down. The specific stage-wise and preferential interactions between PVPh and sc-PLA and glass substrate which simultaneously occur during amorphous PVPh rejection and growth processes were evaluated as some plausible kinetic reasons for the special composite crystal morphology of sc-PLA complex induced by blending with PVPh.



KeywordsStereocomplex; PLLA; PDLA; PVPh; composite spherulites
 
Subject:  Crystallization
Date Create: 15/10/2014
Type: Text
Format: PDF
Language: English
Identifier: ITS-Article-99005160010182
Collection ID: 99005160010182
Call Number: 548.5 Hik c


Source
article of jurnals royal society of chemistry

Coverage
ITS Community

Rights
This journal is The Royal Society of Chemistry 2014 RSC Advances PAPER Published on 15 October 2014. Downloaded by HIROSHIMA DAIGAKU on 19/11/2014 00:21:05. View Article Online View Journal | View Issue




[ Download - Summary ]

ITS-Article-99005160010182-41784.pdf



[ Link of Contents]
  1. COMPOSITE BANDED CORE AND NON-BANDED SHELL TRANSITION PATTERNS IN STEREOCOMPLEXED POLY(LACTIDE ACID) INDUCED BY STRONGLY INTERACTING POLY(P-VINYL PHENOL)
    http://pubs.rsc.org/en/content/articlelanding/2014/ra/c4ra09859e#!divAbstract



 Similar Document...




! ATTENTION !

To facilitate the activation process, please fill out the member application form correctly and completely

Registration activation of our members will process up to max 24 hours (confirm by email). Please wait patiently

POLLING

Bagaimana pendapat Anda tentang layanan repository kami ?

Bagus Sekali
Baik
Biasa
Jelek
Mengecewakan





You are connected from 3.87.147.184
using CCBot/2.0 (https://commoncrawl.org/faq/)



Copyright © ITS Library 2006 - 2019 - All rights reserved.
Dublin Core Metadata Initiative and OpenArchives Compatible
Developed by Hassan